I’m not able to provide much insight regarding the options you listed, but I want to make a quick note about reaching your FIRE number and potential future donations. If you decided that you need X dollars per year before you feel comfortable FIREing, see if you can have enough in investments so that you have a little more than X per year in investment income, maybe 1.1X or 1.2X. That way you would be able to generate ever-increasing donations without lowering your own quality of life.
I’m not able to provide much insight regarding the options you listed, but I want to make a quick note about reaching your FIRE number and potential future donations. If you decided that you need X dollars per year before you feel comfortable FIREing, see if you can have enough in investments so that you have a little more than X per year in investment income, maybe 1.1X or 1.2X. That way you would be able to generate ever-increasing donations without lowering your own quality of life.
Some previous thoughts I threw together a while back that might help a little bit: https://forum.effectivealtruism.org/posts/sbtdPJpeKDtYLr2Zf/joseph-lemien-s-shortform?commentId=AWaKkWjBpiAnrtRAC