Have you heard of effective altruism and givewell? If you want to maximize benefit per dollar I don't think there's a better way. https://www.givewell.org/ ht

Have you heard of effective altruism and givewell? If you want to maximize benefit per dollar I don't think there's a better way. https://www.givewell.org/ https://www.givewell.org/ https://www.effectivealtruism.org/ https://www.effectivealtruism.org/