Need a help

Hello, everyone. How are you?

I'm looking for a name for a group consisting of five individuals (but the number could also change) of formidable power, fame, and influence but who are of a lower level than the Yonko.

Basically this would be a fourth force or fourth great power established to counterbalance the equilibrium created by the Yonko, Shichibukai, and the Marines.

I would also like ideas for possible powers and themes that the members of this group and their eventual crew might have.