I have checked out your post history. have you considered 80,000 hours?

https://forum.effectivealtruism.org/posts/ychu2LAw54sNcocKH/the-anthropic-ipo-is-coming-we-aren-t-ready-for-it

the powers that be are actively seeking grantmakers, so a key constraint is just that there are an insufficient number of people making grants. another issue being that grant makers tend to make correlated grants