Comments
These might be useful for creating a map:
- EAHub's list of organisations: https://resources.eahub.org/learn/orgs and check if there's any big projects that just aren't in a status of an organization on EAColabs: https://www.impactcolabs.com
- For concepts, pick the big stuff from the forum tags: https://forum.effectivealtruism.org/tags/all
- Forums of engagement: https://resources.eahub.org/learn/connect
- For some data on the community: https://forum.effectivealtruism.org/tag/effective-altruism-survey
Not exactly what you are looking for, but here is an actual [metaphorical] map (although it could do with updating; it's from Feb 2020):
Oh Wow, that's a really fun idea. Thanks for sharing! It's like someone was writing an EA fantasy series.