Hachyderm is my instance. It’s heavily influenced by techy people, but there’s a bit of everything there. Strong culture of safety for social justice - some of the most followed LGBTQ and Black accounts post from there. I’d highly recommend.
Others I’ve enjoyed browsing are indieweb.social and toot.community
I had a good group of friends use it and that made it really fun. I remember the product itself being great initially. It just never gained any users.