@AKK this thread has a lot of electronics people, perhaps a few will pique your interest:
https://fosstodon.org/@axwax/109247390726653549
Otherwise I'd say just lurk on those hashtags for a few days, make an interesting post or two on those subjects, and you'll naturally amass a decent amount pretty quickly. A lot of people are expanding their networks rapidly right now.
@axiopaladin thank you. I'll plan to do that as soon as I have a spare moment to properly link and word that. :-)