Hey there, I'm Hannah, and among my handful of characters I currently have two in the MCUish world. First being this girl, Amy Bendix, from Netflix's The Punisher. She'd know who Steve was from seeing him in the news/tv, but that's pretty much her extent of knowing him. Other than being friends with MJ and Morgan Stark, she doesn't interact too much with the Marvel crowd.
More importantly, I have Bucky over at assignment. He's from post-Endgame. I will say that a headcanon of mine for Bucky is that he had had some internal ~issues with how the movie ended re: Steve's jump back to the past, but he's more or less over that now given he's had some time to separate the then and where he is now and all the crazy of being in Goodland. He'd obviously be very happy to see Steve show up!
I also have Laura Howlett (retractable) from the Logan/X-Men movieverse. While technically Marvel, she wouldn't know Steve or Kate.
I'd be open for any and all chatting or plot things you may want to discuss. :)