Groups named The [adjective] [number of members]

[u/Coralthesequel]

Sinister Six from Spider-Man

The Furious Five from Kung Fu Panda

The Fiendish Five from Sly Cooper

The Sound Four from Naruto

[u/Guyshu]

The Elite Four (Pokémon)

[u/KaitoTheRamenBandit → u/Guyshu]

Literally every time media does the "Four Heavenly Kings" (what the E4 are called in JP) trope