Awesome – sounds like pretty fun and interesting. Let me answer in a non-digital and digital way, sort of bush-guidance.
I would think about your target market, and what you learned from the workshops you ran around the participants that might help you refine who your sweet-spot target is for marketing too. Then once you define this group, then the question is ‘where are they’ and ‘how do you get to them’ with your marketing – it could be email, it could be in person, and it could be by asking the people who have already been on the workshops to make referrals or recommendations for you to talk to some people?
In a similar way to the beta workshops you ran, for digital marketing it is all about finding your ‘sweet spot target’ profile of your prospects, building up that persona and profile and then going out with your digital marketing to find more people like that. Building your funnels and having different landing pages for you to learn and optimise. I am not too technical on this – albeit it is really about using digital marketing to take you to your target market and then bringing them into the funnel and converting them.
Wishing you all the best. Andy