Anything canon or cross-canon for this guy right here and it doesn't have to be Bucky. Any incarnation of a character Seb portrays. (het/slash - MCU)
I also write Wade Kinsella (Hart of Dixie) & Mark Callan (All Rise).
I could also be open to writing against OCs (Females preferred).
Someone for Mal Reynolds (Firefly) or Young Han Solo (Solo) if that's more your thing. Doesn't have to Canon can be OCs. Het or Slash.
Also, Star Trek AOS McCoy/Kirk (will write either)