This is exactly it

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

Just did, thanks for the recommendation!

The Mlem app allowed me to “Favorite” a few core communities. So I’m bouncing between those and the “All” view to try to keep tabs on which communities are picking up steam.