Hi.
Im big shipper, so i wanted to join the conversation and share what i feel about One Piece couples.
It's implied that Smoker and Hina know each other very well in any sense. So, to me, it's more than a ship, they are almost a canon couple.
There are people shipping Smoker with Tashigi, but i see them more as a father daughter relation.
Sanji x Pudding. I also see this one as an almost canon couple. I think Oda really went far with this couple. The interactions between these two ruled the wci saga. Sanji with Pudding can express the best of himself, and on the other hand Pudding act with Sanji in a similiar manner that Sanji act with other women. They fit each other so well.
Sanji interacts with Pudding in a new, mature way, that is different than the attitude he showed with all the other female characters. I think everyone can agree with this.
I ship Luffy, Franky, and Brook to nobody actually, but i understand people shipping Franky x Robin, since Oda use to push in that direction. Even though Luffy and Nami are shipped probably mainly because they are Male and Female protagonist, so of course they share many moments together.
For some reason i ship Monet x Law and Mihawk x Hancock, both couples would be cute together, and also Zoro x Perona has their cute moments.