not super complete but I’ve had so much trouble finding some or getting them from orgs that these may be helpful! thanks to pb!
This site also has a “free resources” tab that I signed up for and you can get more materials/PDs/information regarding how to approach restorative justice circles.
This British site also has an overview as well as some links to resources and books for purchase at the bottom. My hunch is that the “real deal” information (i.e., steps in the restorative conference, practice guidelines, etc.) are in the books