Steve Rogers | MCU
Steve is pretty used to weird stuff happening (he did wake up 70-odd years in the future and wind up fighting aliens and robot armies) but this is going to be totally new for him. Coming from a busy superhero background he's going to struggle a little with being useless and I would love for him to make some friends to help him settle into a civilian life.
He's got a superslowburn romantic line planned but I'd love some awkward flirting, maybe some awkward dates that don't go anywhere, along the way. Also I would love for Captain America fans to know and recognize him. Because I get great joy out of making him uncomfortable in his fame.