Which fics does everyone know by name in your fandom?

Like 'The Plantar Family Pet' & 'Medicated' in the Amphibia fandom or 'Mastermind: SFH & ROA' or 'Verdant Emperor' in MHA. What are some fics from these or other fandoms that there is like a 90% chance everyone will know if you just say the fic's name or author?