zoro and sanji, sabo and koala, luffy and usopp, zoro, nami, chopper, iva and luffy, jimbei and luffy, roger and whitebeard, ace and luffy, buggy and shanks and mr 3, ashura and kinemon, whitebeard and marco and luffy and ace, vivi and nami, robin and chopper and franky and brook and nami, loads of great companionship and chemistry.
Nami and Usopp is a classic. Both are perfectly in synch as they can relate to each other when shit hits the fan. Their friendship seems so much closer than the rest of the crew tbh. You can tell how excited Nami was to see Usopp after two years compared to the rest of the crew, the dude is also responsible for her one and only weapon in combat.
Luffy and Zoro, nothing really needs to be said here. They often don't even need to exchange words to understand each others mindset.
Sanji and any male SH, he treats them like shit and it's hilarious.
Chopper + most strawhats, he's always in awe. Buys into all of Usopp's bs, respects Zoro, who doesn't spoil Chopper but teaches him for his growth. Clowns around with Luffy.
Luffy and Zoro, nothing really needs to be said here. They often don't even need to exchange words to understand each others mindset.
Sanji and any male SH, he treats them like shit and it's hilarious.
Chopper + most strawhats, he's always in awe. Buys into all of Usopp's bs, respects Zoro, who doesn't spoil Chopper but teaches him for his growth. Clowns around with Luffy.