There are many niche communities missing, but they will come with time and with people talking more.

Thanks.

What does the acronym CSA mean? I’m not native English.

OP check this, it’s the closest to what you want.

But for example, on kbin I am on kbin.social/m/technology. That’s not the same as lemmy.world/c/technology right? When I search for common subs it doesn’t show me the subs from the other.