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!
2019 Virginia Tech vs UNC. Game went to 6(!) overtimes. Hokies won. I swear that game took a few years off my life. I brought my (then) 9 year old son and told him “I’m sorry, that is officially the most exciting game you’ll ever see. 9 years old and that’s as good as it will get.”