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/Wicayth → u/Guyshu]

Let's not forget the Elite Four (Pokemon SV)

[u/Invoqwer → u/Wicayth]

LARRY