Zoro and Luffy have Vegapunk outfits.
Sanji and Jinbei have Hawaiian outfits.
Oda is hinting at the official duos.
Technically
Luffy, Chopper and Brook have the same outfit as Shaka and Edison
Zoro, Franky and Usopp have the same outfits as Lilith.
Sanji and Jinbe have their own thing.
Nami, Stussy and Bonney all share the same one
Robin and York have the same one