Wow, this is both very helpful and still a bit of a puzzle. Thanks all!
What I’m hearing is that I should fill the Roth IRA each year, and that for 2021 it may be worth setting up a Roth 401k. Due to the $15k SE income plus $20-25k RMD’s (it’s recent so spread over 10 years), I don’t have extra space in the deductible, and with another $20k in dividends, I’ll be at a minimum of 213% FPL for CA for the next few years, which means that, according to seattlecyclone’s graph, harvesting capital gains now probably doesn’t make financial sense. I have a lot of cash, to reduce SORR, so don’t need to generate gains anytime soon unless I find it financially beneficial.
Minimizing income now likely means that I’m paying more taxes in the future, but I am more sensitive to paying taxes now, since the future is uncertain, I’m still getting used to mostly-FIRE, and if I do end up inheriting later I’ll have a much fatter fire to spend with.