I've been to a handful of trailer parks with wonderful communities, and a lot of the people are not poor, just saving money, and stumbling upon community!

I'm also a nomad and have found that, with a little extra effort on my part (it helps that I'm extroverted and skilled with productivity apps), I can easily see many friends all over the world.

Also there was a study that found the reason some old folks lived super long in Italian towns is because of community.