Hi! Thank you so much for all the work you put into these lists, it’s really admirable! I was nearly certain you’d done a list for firefighter!Steve AUs but I can’t find it anywhere, although I may have just missed it? Anyway, if you haven’t, I’d really appreciate that. Thanks again!

There is a list of Firefighter AU recs already.  I checked again, and here are a couple more you might like:

Ace by @s-horne: He had known as soon as the phone started ringing.As soon as Sam had turned to him with that look on his face, Steve
had known. It hadn’t been an explosion at Tony’s lab, which Steve had
half been expecting for months, but a freak short circuit in his
apartment that had sent the kitchen up in flames.Steve still couldn’t remember the ride there; could only remember
that feeling of utter horror. Dread and nausea battled it out in his
head and his heart for the entire journey. He was surprised that his
chief had even let him go, but then again Steve felt as though he would
have gone with or without permission..Tony earns himself a new nickname from a terrible incident

we were meant for love by starvels:Steve and Tony meet at a wedding and fall in love. Everything is good and easy and wondrous and Steve will fight the next person that calls him and Tony a cliché that won’t last.