I am a fan of CAIP as one of the few AI policy orgs that explicitly focuses on x-risk and has a concrete plan for reducing risk. I wrote ~500 words of commentary here: https://mdickens.me/2024/11/18/where_i_am_donating_in_2024/#center-for-ai-policy
Due to my limited budget, I am not donating to CAIP, but I would encourage donations to it, especially by foundations/grantmakers.