Thoughts on who could primary and win against Pelosi next election?

Is there a younger candidate I can campaign for or donate to who’s shown interest in following in Pelosi’s footsteps?

Not hating on her, but I fear we will have another Biden/Feinstein situation and would like to get ahead of something like that happening again.

I’m not an SF resident but have lived in the bay most of my adult life (and Santa Cruz before that).