The key skill sets are determined by whom you are targeting for training. Customer acquisition channels will also be determined by whom you are targeting.

Hi,

One of my best friend used to own of Canada's largest mobile fitness franchisee so I feel like I can answer your question quite well.

The first thing you need to focus on is your CAC (Customer acquisition cost).

How much marketing does it cost to get 1 client. Once you have a decent idea of your CAC you can start scaling your fitness courses.

The best possible way to do it is by running webinar sessions targeting a specific fitness problem and then offering your course as a solution with some bonus materials at the end of the webinar.