So, back in the olden days when the Pirate king sailed the seas, there was a major 4, made up of Roger, Garp, Sengoku and Whitebeard.
If Luffy's gonna be the King, whos will be the major four?
These are people that can almost beat Luffy by that point.
I'm guessing something Like Buggy, Coby or Smoker possibly, Shanks is a Yonko and kinda old, but he'll still be around when Luffy dies or whatevs, Coby isn't that strong now, but I hear he's captain and he says he'll be an admiral.
I can't think many more, so yous think up some valuable thoughts and comment them!
Going Merry Christmas