what exactly is Sanji and Nami a conqueror in?
Outside of Luffy & Zoro realistically Usopp has the dream/potential to be a Conqueror. Even though he doesn't have FS he has his own advanced form of CoO that is similar to Issho's. Once he unlocks armament which should be this arc which would suffice as Usopps training arc. He'll be more confident and slowly unlock CoC given his dreams and ambitions and his fables outranks Sanjis dream of finding All Blue and Nami's of wanting to draw the world's topography. Plus his father is Yasopp a well respected and highly ranked pirate on Shanks' crew.
Those are no kingly ambitions from Sanji nor any other SH outside of Zoro, Luffy and Usopp.
Luffy's right hand man Zoro and his BFFL Usopp.
Outside of Luffy & Zoro realistically Usopp has the dream/potential to be a Conqueror. Even though he doesn't have FS he has his own advanced form of CoO that is similar to Issho's. Once he unlocks armament which should be this arc which would suffice as Usopps training arc. He'll be more confident and slowly unlock CoC given his dreams and ambitions and his fables outranks Sanjis dream of finding All Blue and Nami's of wanting to draw the world's topography. Plus his father is Yasopp a well respected and highly ranked pirate on Shanks' crew.
Those are no kingly ambitions from Sanji nor any other SH outside of Zoro, Luffy and Usopp.
Luffy's right hand man Zoro and his BFFL Usopp.