Hi - i would first start with your goals. if this is to be a group for your team to interact and share, a system like Teams, Slack or Monday are good alternatives that have cloud interfaces and have a ton of functionality. For more open groups, Facebook groups are pretty robust. Could you tell me a little more about how you want to use the group and the overall goal as that may help define your solution better.
-JL

Google groups is a service from Google that provides discussion groups for people sharing common interests. The Groups service also provides a gateway to Usenet newsgroups via a shared user interface. Google Groups became operational in February 2001, following Google's acquisition of Deja's Usenet archive. Deja News had been operational since March 1995. Google Groups allows any user to freely conduct and access threaded discussions, via either a web interface or e-mail. There are at least two kinds of discussion group. The first kind are forums specific to Google Groups, which act more like mailing lists. Groups such as project teams, departments, or classmates can communicate and collaborate using Google Groups. If you want to invite a group to an event, or share documents with a group, you can send a single email to everyone in the group. You can also create an online forum to discuss a popular technology or answer questions about a product.
Thus, google group is a team building and management tool. There are many alternatives to google groups. Notable among them are:
1. nTask: nTask is a comprehensive tool that is designed especially for Agile Teams. Comprising several modules and features devoted to Task management, project management, issue management, risk management, meeting, and team management, it provides all possible solutions for any business under one roof. Top Team Management Features of nTask:
11. Unlimited workspaces
12. Unlimited team members
13. An easily workable user interface
14. Information exchange through comments and file sharing
15. Employee-time effort reports
16. Timesheet management module
17. Task and project assignment to individual members or teams
18. Individual workspaces for teams with dedicated tasks, projects, issues, risks, meeting management modules
19. Allows early issue tracking, with issue status, priority and task linkage.
20. Meeting management module to schedule meetings (one-time and recurring)

2. ProofHub: ProofHub is an all-in-one team management software with powerful features that help managers stay in ultimate control of their teams, tasks, projects, and communications. Top Team Management Features of ProofHub:
11. Custom roles to define work better and maintain transparency in processes
12. Flexible task management with simple to-do lists and agile workflows and kanban boards
13. Gantt chart for efficient planning of projects with a quick drag and drop functionally
14. Project timeline to efficiently plan tasks and keep projects moving on the right track
15. Online proofing tool to simplify review and approval process for creative works
16. In-built chat app to bring all your communications in one central place
17. Easy file sharing and management
18. Custom reporting allows you to manage your resources better with
19. Automatic timer and timesheets to foster accountability and productivity in teams
20. Integrations with third-party apps like Dropbox, Box, Google Drive, OneDrive, iCal, and Google Calendar
3. Bitrix24: Bitrix 24 is a project management software that provides an entire suite of team collaboration, communication, and management features for your team. Top Team Management Features of Bitrix 24:
13. Accommodates up to 12 free users.
14. Includes social features that include comments and likes
15. Reporting and automated processes such as notifications
16. Allows subscriptions to groups or discussions.
17. Virtual voice calls and integration
18. Modules for intranet services such as conversations, photo gallery, wiki, files, calendars, and tasks
19. Employee directory, task effort, and time reporting and attendance chart
20. Time management tools that include attendance tracking, work reports, daily planners, meeting manager, an event scheduler
21. Document sharing and libraries
22. Social search including events, tasks, and uploaded documents.
23. Project coordination and scheduling
24. Telephone integration
4. Tempo: Tempo is another top team management software that helps you manage your team in multiple ways. It offers solutions for managing projects and teams through drag and drop. Top Team Management Features of Tempo:
11. Team management by roles, capacities, start and end dates, workload and holiday schemes.
12. Link Jira boards and projects to teams for backlog definition.
13. Grant permissions to individual users or groups
14. Apply custom work and holiday schedules.
15. Access an overview of all resources in your organization
16. Use filters to find staff based on their team, role or availability
17. Access a timeline with your team and their backlog in parallel.
18. Plan work through drag and drop onto the timeline.
19. Real-time reports
20. A capacity report showing details of the allocation and availability of each team member
5. Scoro: Scoro is a complete business solution laced with modules that cater to team management, project management, and customer relationship management. This top team management tool is equipped with all the necessary tools to provide solutions to your business needs. An all-in-one tool ranging from document management and project completion to invoicing, billing and client management, it helps you make use of all the powerful features along with a robust collaboration feature set. Teams can keep productive while collaborating on all levels including idea management, information sharing, team reporting, meeting management and resource balancing for workload assigned to teams. With such a comprehensive set of features, this top team management software is growing in popularity with teams and organizations across various industries. Top Team Management Features of Scoro:
7. Contact database and management
8. Work and meeting scheduling
9. Shared team calendar
10. Communication and file sharing
11. Time tracking and billing for work
12. Detailed project reports including project progress and finances
6. Monday.com: Previously known as Dapulse, Monday is an efficient collaboration and communication application for teams. It provides project and task management features as well as facilitates team collaboration and management. Top Team Management Features of Monday:
12. Advanced scheduling features for tasks and projects
13. Displays project and team progress visually
14. Offers an Execution Board
15. Allows tagging teams
16. Receive updates and notifications
17. Receive updates through email
18. Integrations with other tools such as Dropbox, Google Drive, Pipedrive
19. Searchable knowledgebase
20. Documentation management
21. Personal and public Boards
22. Live comments on visuals

7. Clarizen: Clarizen is a project management tool that provides robust features to boost collaboration and workflows, making it one of the top team management software. Top Team Management Features of Clarizen:
11. It offers collaborative planning
12. Caters to Salesforce Integration
13. Includes personal calendars, billable and non-billable work items
14. Offers real-time team updates
15. Allows expense tracking and shows financial indicators
16. Offers time and budget tracking
17. Resource management feature
18. Easy role definition and assignment for projects
19. Document exchange and information sharing
20. Work scheduling

8. Smartsheet: Smartsheet is a web-based tool for project management, team task management and more. Comprising a wide set of features to facilitate workflow and project deliveries, it caters efficiently to the team management as well. Top Team Management Features of Smartsheet:
11. Contact management for customers and employees
12. Discussion Board for team discussions
13. Easy e-mail integration
14. Document management and file sharing
15. Group calendars
16. Project hierarchy for team assignment
17. Automated reporting
18. Live chat for discussions
19. Customizable workspace
20. Notifications and reminders

9. Flowdock: Flowdock makes it to our list of top team management software due to a clean interface, simple yet powerful features, and great collaboration options. With Flowdock, you can manage your team with centralized and open communication and options for multiple integrations. The best part – work is anything but boring with Flowdock as it lets you add custom emojis and GIF images from Giphy to make work and collaboration full of humour and fun. Plus, you have a Team Inbox that lets you save all your discussions and conversations that can be accessed by all team members. Top Team Management Features of Flowdock:
21. Multiple Chat flows for easy communication
22. Emoji and GIFs to make work fun
23. Drag and Drop feature to create a more streamlined workflow
24. Team Inbox to save all discussions
25. Audio notifications for desktop/mobile users
26. Threaded chat to make conversations more understandable
27. Online contacts
28. One on one chat
29. File uploads and storage to store all your important information
30. Manual and automated data backup
31. Image and video previews to the work in focus
32. Comments for added information and ideas
33. Editing
34. Status updates
35. RSS Reader
36. Custom Content
37. Powerful, full-text search to save time
38. Notes and Tagging
39. Top-notch security to keep your data safe
40. iOS and Android mobile apps

10. Quire: Quire one of the top team management software for a number of reasons. It gives you a myriad of options for managing teams and projects. Although most of the features focus on creative teams, it proves as an asset equally to teams in other industries as well. Whether you want to jot down ideas or implement them making use of unique tree structures, it allows you to simplify complex projects into easy chunks of work through unlimited tasks and subtasks. If you love Kanban boards, this tool will easily help you design your workflow through Kanban. Top Team Management Features of Quire:
12. Real-time and instant team collaboration
13. Unlimited tasks and subtasks with unique trees
14. Organize, prioritize and assign tasks
15. Easily updateable task statuses
16. Start and due date/time for tasks
17. Transparent and simple, an all-in-one workspace
18. Exclusive third-party access
19. Integrations with Siri and the camera for iPhone
20. Multiple team roles and permissions
21. Smart folder + Filter feature
22. iOS and Android mobile apps

11. Team Support: Team Support is an online, cloud-based app that helps you manage various aspects of customer support. With functionalities such as an internal centralized communication chat channel, ticket management, contact management, live chat, and customer self-service portal, this top team management tool is ideal to work with support teams even based remotely. Team Support lets your team interact efficiently with other teams including sales and finance to better carry out customer support responsibilities. Top Team Management Features of Team Support:
28. Centralized internal chat for team collaboration
29. WaterCooler social networking tool
30. Groups
31. Integrated screen recordings
32. Intuitive online help desk interface
33. Knowledgebase
34. Multi-channel support
35. Email integration
36. Integrated live chat
37. Customizable dashboard
38. Powerful search
39. Mobile agent tools
40. Ticket automation
41. SLA management
42. Community management
43. Customer self-service
44. Advanced portal tools
45. Ticket deflection
46. Integrated customer database
47. Product database
48. Track service contracts
49. Integration with popular CRM systems
50. Management tools
51. Reporting and metrics
52. Rights management
53. Integration with business intelligence systems
54. Compatible with iOS, Android, BlackBerry, and Windows Phone.

12. Kanzen: Kanzen makes use of Kanban boards in order to facilitate project management and keep work transparent amongst teams. Kanzen is a part of our top team management software list due to a feature set that helps teams collaborate efficiently keeping workflow crystal clear and to the point. Teams can share information and files, send and receive notifications, assign tasks and customize their Kanban interfaces with a few clicks. This tool helps teams stay creative and versatile through multiple options for task and project management including configurable card templates and analytics. Top Team Management Features of Kanzen:
23. Create Teams/Groups
24. Document Management
25. Messaging or Instant Messaging
26. Social Collaboration Platform
27. Notifications
28. Customizable Kanban boards
29. Card templates
30. Calendar
31. Interactive Gantt Charts
32. Project Hierarchy
33. Project Portfolio Management
34. Project Templates
35. Scheduling
36. Supports Multiple Projects
37. Card View
38. Cycle Time Analytics
39. Manage Product Backlog
40. Track Project Hours
41. Task Management
42. Resource Management
43. Issue tracking
44. Analytics
13. Hygger: When it comes to team management, catering to popular Agile frameworks is a plus point for an online tool. Hygger helps you adopt the Agile practice into your workflow by letting you design projects and team collaboration along the lines of Agile frameworks. Following the approach Scrumban, which combines optimal aspects of Scrum and Kanban, this top team management tool lets you stay on track with transparent team management. From tools that allow you to jot down project ideas to modules and features that cater to issue management, task and project management, time tracking and customer feedback, Hygger is your all-in-one tool encouraging effective team collaboration for timely project delivery. The best part – teams and individual users are able to work simultaneously on multiple projects or even combine projects without affecting any part of the project development cycle.
16. Kanban plus Scrum-based team collaboration
17. Smooth communication and collaboration channel
18. Ideas storage and scoring
19. Ability to create roadmaps and share with teams
20. Task and project management
21. Progress tracking and monitoring
22. Reporting: Burndown report for Scrum and Cycle Time for Kanban real-time monitoring for a release.
23. Gantt charts
24. Percent complete tracking
25. Time tracking report for accounting and payroll
26. Release management
27. Time tracking
28. Milestone tracking
29. Expense tracking
30. iOS and Android mobile apps

14. Teamweek: Teamweek is a project management and team management tool that will help you sort your resources and monitor your workflow visually. You have options such as capacity planning where you get to monitor your team and modify it according to your requirements. You can view roadmaps and with the shared timeline option (which is downloadable as pdf), your team can stay on the same page regarding project updates and other information thereby giving way to more streamlined collaboration. Plus, with teams that require versatile plans for holidays and workdays, Teamweek helps you customize holidays and establish milestones as needed. You can also view your long-term plan by reviewing work annually.
20. Multiple user access levels
21. Shared timeline
22. Timeline downloadable as PDF
23. Customized workdays and holidays
24. Public links
25. Team availability view
26. Ability to import from Basecamp or Trello
27. Export to calendars
28. Send tasks via the Google Chrome extension
29. Drag-and-drop interface
30. Filter calendar by project
31. Set public holidays by country
32. Organize tasks into folders
33. Timeline view
34. Customized, color-coded tasks
35. Integration with Slack (communication) and Toggl (time tracking)
36. Overbooking calculations
37. Backlog for unassigned tasks
38. iOS and Android apps
15. Slack: Growing immensely in popularity over the years, this app can be integrated with your existing task and project management tools. You can create tasks and projects in other tools such as nTask and have team members notified on Slack regarding the creation of tasks and projects, status updates and other alerts in the corresponding tools. So, it works both ways. You can create communication and collaboration channels, opening doors for one on one private chat as well as group discussions. You can also upload files and search for important elements and shared files in individual or group conversations. With the option of inserting emojis and attachments, Slack becomes a powerful yet fun collaboration tool for all types of teams. Top Team Management Features of Slack:
16. Instant messaging
17. Individual and group discussions through multiple channels
18. Create, customize, and hide channels
19. File upload
20. Search
21. Direct creation of tasks and projects for certain tools
22. Receive notification and alerts for tasks and project creation as well as status updates
23. Setting reminders across activities typed
24. Voice and video calls
25. Single-sign-on via industry-standard authentication protocols
26. Support for two-factor authentication
27. Encryption of data in transit and at rest
28. Pinup to 100 files and messages
29. Customizable sidebar
30. iOS and Android mobile apps
16. Asana: Asana is a popular task and team management tool that continues its reign in the field of project management. This top team management software offers a broad spectrum of features related to project management as well as team collaboration and management software. Customize task management and project delivery by organizing and prioritizing activities according to your project requirements and team sizes. Your team can collaborate seamlessly through a multitude of features such as letting team comment on tasks, ‘like’ tasks, assign tasks, monitor different activities and their progress by team members, and keeping a centralized view on teams through ‘My Dashboard’. Top Team Management Features of Asana:
12. Activity feed for centralized updates on the workflow and team activities
13. Task assignment, liking, My Tasks list, and Focus Mode
14. Multiple workspaces for handling multiple teams in parallel
15. View team members’ tasks and priorities
16. Real-time updates for teams on tasks and projects
17. Customized team calendars and views
18. Automatic updates to team members’ inbox
19. Email bridge
20. Notifications and reminders
21. iPhone support, HTML5 mobile site
22. Meeting minutes

17. Wrike: Wrike needs no introduction and is rightfully one of the most successful project management and top team management software available to project managers. With a sleek interface hosting a multitude of features for streamlined project delivery and team collaboration, this top team management software is an asset to project management teams on all levels. Make sure to keep your team on the same page and their workflow managed appropriately with Wrike to facilitate timely project completion. Plus, it gives you several subscription plans to accommodate your team size. Top Team Management Features of Wrike:
10. Team discussions in tasks
11. Member engagement through tags
12. Meeting management
13. Real-time newsfeed
14. Document collaboration and workload management
15. Task assignment
16. Email integration for teams
17. Meeting management
18. iPhone and Android mobile apps

18. Proworkflow: Proworkflow is a single tool that helps you manage tasks, projects, teams, and resources via a single dashboard in a way to extend more flexibility to workflow and resource management. This top team management software offers a vast array of characteristics including activity management, templates to customize your workflow, timesheet reporting to track time and expense on activities, as well as messaging and document sharing to facilitate team collaboration and communication. Furthermore, keep more in control with the finances through the quotation and invoicing management modules. Top Team Management Features of Proworkflow:
11. Centralized messaging and collaboration
12. Team file sharing
13. Contact management
14. Shared content management
15. Cooperative writing
16. Task assignment
17. Resource allocation and management for easy workload balancing control
18. Notifications and alerts
19. Client access and request ability
20. iPhone and Android mobile apps

19. Basecamp: Basecamp can be termed as one of your top team management software due to the vast collaboration abilities it lends to its users apart from its project management features. With channels for task assignment, instant messaging, real-time chat with groups and individuals, document sharing, and automatic work reports, it gives users to stay on track with project progress individually and stay in sync as teams. Plus, the teams get notified on all updates on a central page and through a feature called ‘Check-in questions,’ the team members can provide status updates on a daily level without having to arrange time-consuming meetings. In essence, Basecamp keeps your team productive and projects streamlined without the hassle of incorporating multiple tools. Top Team Management Features of Basecamp:
15. Teams and Groups creation
16. Messaging or real-time messaging with individuals or in groups
17. Task-associated conversations
18. Document sharing and management
19. Information and file sharing
20. Forums for team discussions
21. Shared timeline to view activities across the team for projects
22. Tracking hours for employees spent on projects
23. Team calendar
24. Single view to oversee tasks from multiple assignees
25. A centralized page for all notifications
26. RSS Feed
27. Resources allocation and forecasting
28. iOs and Android mobile apps

20. RingCentral Glip: RingCentral Glip or Glip is yet another versatile, cloud-based project planning software that helps you keep team management under control. It incorporates effective team management into task and project management features through multiple options with tasks and projects. For instance, you can assign created tasks efficiently, share documents and files, schedule project deadlines and track project progress while keeping the team in the loop. Team members can converse with each other with the option of assigning tasks within the conversation. Plus, you can keep a history of conversations to refer to later if needed. There are also contact management and screen sharing options for training and meetings. Top Team Management Features of Glip:
9. File sharing
10. Real-time messaging for individuals and teams
11. Video calls and meetings
12. Screen sharing
13. Conversation history
14. Task assignment through conversations
15. Configurable email and push notifications
16. iOS and Android mobile apps

21. Fleep: Fleep is a simple yet fun to use team collaboration and communication tools. You can use Fleep as your team management tool within a single team, across various teams in an organization or with remotely based teams. Focusing more on effective communication, it offers the needed feature set for keeping teams on the same page via features such as file drawer for each conversation where concerned team members get to store and manage files, tasks to create, search, assign tasks and a pinboard along each conversation for adding additional information to a conversation such as meeting notes, links and other important details. Top Team Management Features of Fleep:
9. Task assignment
10. Real-time conversations
11. File exchange and storage
12. Pinboard for storing additional information
13. Presence features that display ‘last active‘, ‘last seen‘ and ‘writing’ statuses for employees
14. Audio and video calling
15. Screen sharing
16. iOS and Android mobile apps

22. Hubstaff: This is one of the most sought-after team management applications on the market right now. This is because the application provides some very powerful task management capabilities, hours tracking features, and overall exceptional reporting capabilities among many others. It is an amazing software that can be used in a physical office or even from the cloud to manage remote teams. This remote feature helps to track employee’s hour logs, track their work reports, and view their work progress, etc. Top Team Management Features of Hubstaff:
12. See the software programs your team uses in real-time
13. Calendar management
14. Customizable templates
15. GPS and location monitoring
16. Mobile integration
17. Accounting integration
18. Budget control
19. See all your team’s work unfold in one place
20. Employee management
21. Invoice management
22. Timesheets & reports

23. Trello: Trello is one of the most important software in the world of project management or general collaboration for that matter. This is an amazing software that uses the Kanban methodology to its advantage and offers and a simplistic way to tackle all of the needs and requirements of a project manager. The UI is amazing as it provides a simplistic overview of projects and the tasks through the Trello boards at its disposal. Top Team Management Features of Trello:
8. Activity logging
9. Boards
10. Lists
11. API availability
12. Attach photos, drawings, sketches & mock-ups
13. Due date tracking
14. Security & encryption
24. Podio: Podio is an amazing team management software that was created on an agenda which was to create an application that will produce smarter and structured workflows to streamline the context, content, and conversations related to the team. Apart from being an excellent task management application. It is also a collaboration platform for all your employees working in the company or within a specific project development team. Top Team Management Features of Podio:
15. Simple CRM & sales tracking
16. 24-hour personal support from the Podio team
17. Time tracking by project
18. Activity management
19. Task assignment
20. Automatic reminders
21. Calendar sync with Google
22. Content sharing & feedback workflows with clients
23. MS Exchange integration
24. Mobile apps for Android, iPhone & iPad
25. Dynamic cardboards
26. Activity tracking
27. Automatic notifications
28. Calendar management

Besides if you do have any questions give me a call: https://clarity.fm/joy-brotonath

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