Sri Srinivasan would be a top-contender, I guess. I'm relatively certain it would be a man this time around. If Roberts retired for example, I could also see Biden elevating Sotomayor to Chief Justice and replace her seat with a new appointee.
Hopefully, a Republican Senate will refuse to confirm all Biden nominees.
So a future Democratic senate should also refuse to confirm any of Trump/DeSantis or some other Republicans' nominees?
I don't think they need me to put that idea into their heads. I expect that to happen.
Not until FDR were SCOTUS nomination the big deal they are now. Not until 1968 were they major campaign issues. The reason is simple; the Left in America has counted on the Court to legislate from the Bench what lacked popular support and support in the Congress. The Left hasn't been alone in this (Citizens United is an example of it going the other way), but it's MOSTLY the Left.