[UtopiaPunk]

You may like Marta Harnecker's "A World to Build: New Paths Toward Twenty-first Century Socialism." She outlines a vision that I resonated with a lot, but it is a little hard to put a neat label on. She comes from a Marxist background and usually frames her vision in such terms, but she frequently emphasizes the importance of decentralizing systems, and the importance of pushing power down towards the local levels as much as possible ("cities" are not local enough, for example, and she outlines a systems of communes that organize at something more like the neighborhood level). So there's still some level of national organization, but the goal is for ordinary people to have as much influence over that process as possible and to move decisions away from national levels down to more local levels.

The book can be found here: https://monthlyreview.org/product/a_world_to_build/

And she wrote this essay on the subject, each can kind of serve an introduction or high level summary of the ideas in the book: https://monthlyreview.org/2010/07/01/ii-twenty-first-century...