Looks like there are a few good ideas presented here.
Idea : Select business domains we’d love to see in the fediverse, and write visions / business cases for candidate projects.
Good idea, maybe contact people who are involved in platform co operatives or small groups who support each other, They are more open to the idea of collaboration.
https://platform.coop/
https://localsparktorbay.org/ < local to me, so I can try and promote there.
Paul