In honour of the idea of a fix-it fest (YES PLEASE) -- this is a missing scene from Endgame (could work as a post-credits tag maybe?), Natasha POV, although the focus is on Nat and Steve's deep friendship (with a hint at past benefits), not Clintasha, altho I love them dearly, so if that is not your jam you may want to skip it.

the long way down (4594 words) by actonbell
Chapters: 1/1
Fandom: Marvel Cinematic Universe, The Avengers (Marvel Movies)
Rating: Teen And Up Audiences
Warnings: Creator Chose Not To Use Archive Warnings
Relationships: Steve Rogers & Natasha Romanov
Characters: Natasha Romanov (Marvel), Steve Rogers
Additional Tags: Death, Canonical Character Death, Grief/Mourning, Avengers: Endgame (Movie) Spoilers, Avengers: Endgame (Movie), Soul Stone (Marvel), Fix-It, Brotp, Alternate Universe - Canon Divergence
Summary:

"Nat. If you were in heaven, or having some kind of after-life experience, would we both be dripping wet and would I still be a giant pain in your ass?"

In conclusion, ALL THE FIX-IT FICS YES EVERY POSSIBLE KIND I WANT THEM ALL (I know people have been writing a lot, maybe we could have a master recs post of those??). I know I'm planning at least three more myself!