Tony Time Travel Fic
Looking for a fic where Tony travels back in time from Siberia (I think) and changes his relationship with the other avengers in a good way. I can't remember if he found Steve in the ice or not but I know that Steve respected him. I read this on AO3. This has been bugging me for days.
I found it. A Second Chance to Get It Right by DobbyRocksSocks on AO3