Maybe post-catws, Steve gets deserumed and picked up by Rumlow and friends. I'm open to whether Steve remembers everything or gets deaged and doesn't know who Rumlow is anymore (though I do love a good gaslighting fic), but what I'd really like to see is Rumlow taking advantage of the size difference to get payback and Steve fighting back as best he can but being physically over powered and angry as hell but not able to do anything about it.

My kingdom of trash if "your Bucky" gets included or if a still-sort-of WS Bucky is involved in rescue or aftermath. Shrinkyclinks post-rape hurt comfort, basically.