Season 3

Based on this list: https://wegotthiscovered.com/tv/heres-the-official-watch-order-for-the-vampire-diaries-and-the-originals/

The optimal viewing order for episodes of The Vampire Diaries, The Originals, and Legacies

The Vampire Diaries, The Originals and Legacies in Timeline Order

Chronological order

All the movies, shows, episodes, specials, and events I've watched.

Vampire Diaries, Originals, Legacies all in release order

The viewing order for The Vampire Diaries universe.

TV shows that I watched in or before 2014.

List of tv seasons I finished in 2012.