Hi Kei! I'm very excited to have you joining us; I fucking love Sam Wilson, and he never gets enough attention, so I'm excited to be able to write with one. I've got an MCU Natasha here, and I'm bringing her in post-Endgame; I will not get spoilery in this comment, in case you haven't seen it. In movieworld, though, I feel like it's safe to say that Sam is one of the people closest to Natasha, and she has a sincere respect, love, and appreciation for him.
And she'll be glad to meet any version of him, the same way she was to meet a 616 Clint. She'll be really interested in talking to him about what it's like to be Cap; she's a good listener, and a good one to vent to. I think MCU Nat is a little softer around the edges than her comicsverse counterpart at this point, all these dumb people she's been running around with since 2012 really made her feel stuff, ugh, and I'll be really excited to throw them together.
Let me know if there's anything you need or want, and I get it if we can't throw them together for a bit if you're worried about spoilage!