On a similar journey, just came across sociocracy as one such trying to keep the flame alive [1]. What was interesting for me was to recognize the pieces of such a structure informally existing, in a giant mega-company I worked for. In a vast bureaucratic ecosystem, way down at the forest floor interesting things can happen that the canopy dwellers have no idea about. Of course, being informal, it can only go so far, as the OA describes.

[1] https://www.sociocracyforall.org/sociocracy/