I'm gonna name all of them. Starting with the strongest.
Kaido, Big Mom, Luffy, Law, Kid, Zoro, Sanji, Jimbei, Marco, Yamato, King, Queen, Jack, Killer, Perospero, Inuarashi, Nekomamushi, Denjiro, Ashura Doji, Izo, Guernica, Maha, another CP0 agent (whose name I forgot), Drake.
That's 24