School Six sounds better, but Classix sounds cool too.
Secondary Six, as opposed to Main Six, obviously.
I definitely prefer the Classix
I prefer the 'fur and feathers 6'.
What about, the C6 = Creature 6?
Side six because it sounds like side kicks.
New or young six, they just sound right!
Young Six! ..... you know, like.. Young Justice....
Why do we have to give them any kind of name that places them in direct comparison with the shows main protagonists? Just because there's six of them doesn't mean they're on the same level (which is what you're kind of doing by naming them like that).
"Side Six" is funny because it makes me feel like they are side pieces on a delicious dinner. Like salty French fries. Also Silverstream is the best side six! I love her!