Besides Lemmy which I love a lot, I’m also enjoying a microblog platform called Catodon, which is much less basic than Mastodon and has a very nice interface. Pixelfed is also fantastic if you like photography rather than just being Instagram influencer nonsense. Where else are you hanging out? What have you liked and not liked?
Currently just Lemmy and Mastodon for me.
If I do get back into art, I might self host something like Pixelfed or an ATProto version of it to have a gallery on my site.