You're doing it backwards. Don't put your stuff out there to just anyone, like on Facebook or whatever. Find the communities around your hobbies and put your stuff out to them. Be selective online, because the signal to noise ratio is very very bad these days.
I dont get anything but Lemmy. Its the better Reddit, which I also like. Kinda only-people-of-same-interest but also more open, so new ones can join easily