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?
On Mastodon, too. Some of my more niche interests are better represented there since Mastodon has more active users than Lemmy.