This is already one of FFF's Project Ideas. https://ftxfuturefund.org/projects/#:~:text=on%20this%20list.-,AI%20alignment%20prizes,-Artificial%20Intelligence Basically someone just needs to step forward and implement it!
While not directly EA, I think fiction isalso great to promote some ideas from the Progress Movement, namely humanism, agency, and the idea that "problems are hard, but solvable".
I also feel that the idea that "actually, humans are good, and humanity is worth protecting" needs some promotion. We are not just some greedy, aggressive, nature-destroying species that the earth would probably be better off without!
How about Qualia Research Institute?
https://www.qualiaresearchinstitute.org/blog/history-2021-strategy#what-we-would-do-with-more-funding
Scott Alexander wrote a nice article on what the Republican's program could/should be: https://astralcodexten.substack.com/p/a-modest-proposal-for-republicans?s=r