Interesting in this context is completely divorced from morally good/bad. Could be any group from any area at any time in history. I’ll start with a few, followers of the cult of pythagoras, contemporary black Hebrew Israelites, antiracist skinheads and the Amish (neo-luddites in general). Don’t be racist or a prick to other people discussing.
One of my former best mates is a juggalo, and let me tell you, if you e got a problem they’re absolutely the guys you want at your back. Every single one I’ve ever met has been a stand up sort.