i’m probably going to be out of comission for a while (family and work stuff) but there is/was a fairly active phoenix synth facebook group and there are/were fairly frequent synth meetups and shows before covid. I’m not sure how active it is because I consciously try to avoid facebook. I’d definitely suggest seeking some of those folks. Everyone I’ve met since I moved here 5 years ago have been really nice.
fwiw I wish there was a non-facebook platform to organize local scenes, but not found a great solution for that yet