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?
Mastodon, Bookwyrm, Mbin, and I’m also on a test instance of Takahē (Mastodon compatible microblogging platform) which I quite like for the multiple personalities feature.