Anyone attempting to build a movement might find it interesting how Pumping Station One in Chicago is governed. It's a maker space but run by people who care (at least from my experience when I was a member back in 2015/2016). The process for electing leadership and holding members accountable was very democratic and fair, from my experience. They open-source as much as they can about how they organize:

https://wiki.pumpingstationone.org/wiki/Do-ocracy

https://wiki.pumpingstationone.org/wiki/Member_Manual

https://wiki.pumpingstationone.org/wiki/Administration