Yes, there are. There are many fan - created stories that involve Zoro, Robin and Chopper. Some might focus on their adventures together on the Thousand Sunny, like how they work as a team to overcome challenges during a battle with a new enemy. These fanfics can really show different aspects of their relationships that we might not see as much in the original manga or anime.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of One Piece fanfics, and you're likely to find some great ones featuring Zoro, Robin and Chopper there. Just use the search function and type in their names.
Well, 'chopper fanfic' is basically fan - made stories that revolve around the concept of 'chopper'. If 'chopper' is a vehicle, like a motorcycle (which is often called a chopper), then the fanfic could be about cool rides, customizations, or races involving these choppers. It all depends on what the 'chopper' in question represents in the context of the fanfic.
One possible plot could be that Naruto is somehow transported to the One Piece world. Zoro, seeing Naruto's potential and his own experience in training, decides to take Naruto under his wing. Zoro might start by teaching Naruto basic swordsmanship, which Naruto initially struggles with as he is used to his ninjutsu. But gradually, Naruto starts to incorporate his own chakra control into the sword techniques, creating unique attacks. They could also go on adventures together in the One Piece world, facing pirates and other threats, all while Naruto is constantly learning from Zoro's strict and disciplined training methods.
A popular one is 'The Protector Zoro'. It details how Zoro's entire focus, aside from his own training and goals, is centered around Luffy. He anticipates Luffy's moves and the potential dangers that come with them. This fanfic really hammers home the idea that Zoro is Luffy's protector, and it does a great job of showing their relationship through the lens of protection.
No, in the traditional sense, Chopper, if you mean the character from 'One Piece', is a reindeer and doesn't have the physical ability to read novels as humans do. However, in a more imaginative or fictional scenario within the One Piece world, perhaps with some magic or special ability, it could be possible, but there's no such indication in the original story.
Hard to say. It could be associated with a minor character whose background wasn't fully explored. Or perhaps it was just a random prop without a specific owner.