Prosocial is the best framework we have right now to change our basic conceptions of humans and humans themselves from self-interested individuals to cooperative beings ready to work towards the good of the group. It is a framework to allow groups to find their shared purpose and identity and beyond in order to make them long-term sustainable. It can help you to get together with a group you care about and massively improve the quality of conversations had and the speed with which conflicts can be resolved.
There is a website with some basic information and a book which brings it into a well-organized format. If you want to read it, I can send you the epub User:Jakob