You mean not overtly racist?

So the thing is, the people on nextdoor are the only people who will frequently use something like nextdoor which is why it turned out the way it did.

Time to troll Nextdoor

You're basically competing with Nextdoor, Ring, and Facebook groups. Adoption will be an issue.

Fedihood is probably the closest thing on the fediverse to this, although with far fewer features.