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.
https://en.wikipedia.org/wiki/Jäger_Movement was a Finnish political movement whose aim was to liberate the Grand Duchy of Finland from the Russian Empire. It grew into a trained military battalion and formed a core of the White army in the Finnish Civil War.
One of the biggest reasons why Finland has been an independent country for 109 years.