Mine would be Clemson 2020 at Notre Dame stadium. Thrilling overtime win against the #1 ranked team with only ~15k others in the stadium due to Covid restrictions. I’ll never forget it!
Mine by far is July 7, 2021 when the Bolts won the Stanley Cup at home versus the Canadiens. They had won the previous year, but it was in the social distanced “bubble” finals in 2020, so this one actually had people at it, and they won.
I had painted my beard blue for the entire finals. The big fan group I’m with had been marching through the city down to the game every game night for a few weeks, and then to win it all… Just so so good.