Okay, so mostly I stay away from MCU fanfic (aside from
miss_porcupine) because that's a black hole I don't want to be sucked into, but this one is simply charming: This, You Protect. It's the Bucky-finds-his-way-back fic I didn't know I was looking for, and is by turns heart-warming, heart-wrenching, and laugh-out-loud funny. 