Btc workshops

So I’ve been working my usual job for a while but have passions in tech, public speaking and bitcoin outside of work that I do research in and wanted to know if in person workshops of how to learn skills are still able to make money as am willing to work for free after work to teach people and then create more advanced classes for people still face to face and offer online seminars eventually. I want to know thoughts and some ways I could test the market like using FB events and see if I get any bites as there is a scarce supply of people teaching the stuff I know. Any feedback is helpful! I’m not trying to sell anything I just want feedback from the market:)