One possible fanfiction could be about Zoro and Luffy's unwavering loyalty to each other. Zoro is always there to protect Luffy and vice versa. They might face a powerful enemy that tests their bond, and through their combined strength and trust, they emerge victorious.
Well, they could be on a mission to find a special treasure. Luffy is all gung - ho about it, and Zoro is just following his captain's lead. Along the way, they face many obstacles, but their friendship keeps them going. For example, Zoro might get injured protecting Luffy, and Luffy, in his own goofy way, tries to cheer Zoro up and make sure he heals quickly.
Friendship is a very common theme. Their unwavering loyalty to each other is often explored. For example, in many fanfics, Zoro will always be there to protect Luffy and vice versa.
One popular type of fanfiction could be adventure - based. Imagine Zoro, Sanji and Luffy finding a mysterious island that has a unique power. Zoro might be the first to face any physical threats on the island, using his three - sword style. Sanji would be there to provide food for the group during their exploration and also use his powerful kicks if needed. Luffy, of course, would lead the way, with his rubber abilities allowing him to reach places others can't and his unwavering determination inspiring the group. This kind of fanfiction often shows the strong bond between the three characters as they face challenges together.
There's also 'Zoro and Luffy: Unbreakable'. In this fanfic, it focuses on their shared dreams and how they push each other forward. It has some really exciting action scenes that are in line with the spirit of One Piece. And the characterizations of Zoro and Luffy are very accurate.
For many fans, it's the idea of taking the deep friendship and loyalty that Zoro and Luffy have in the One Piece world and turning it into a romantic relationship. It adds a new layer of depth to their interactions. Also, the contrast between Zoro's tough - guy exterior and Luffy's more carefree nature makes for an interesting dynamic in these fanfictions. The fanfiction writers can play around with different scenarios that the original anime might not explore, like how they deal with jealousy or misunderstandings in a romantic relationship.
There are quite a few out there. Some popular ones can be found on fanfiction websites like Archive of Our Own. Just search for 'Zoro x Luffy Yaoi' and you'll get a list. However, the quality can vary greatly.
There could be a plotline where they get transported to a different dimension. In this new world, Zoro has to learn new sword techniques to fight the strange creatures. Sanji discovers new ingredients and has to adapt his cooking. Luffy befriends some of the locals and together they figure out a way to get back to their own world.
Expect a lot of character exploration. Since Robin has a complex past and Zoro has his own goals and dreams, the fanfiction could delve into how they influence each other. For example, Zoro's pursuit of becoming the world's greatest swordsman might inspire Robin to pursue her own academic or personal goals more vigorously.
In Robin x Zoro fanfiction, their relationship can be really interesting. Robin is the intellectual and mysterious one, while Zoro is the strong and determined swordsman. Their interactions might start from a simple comradeship on the Straw Hat crew. Maybe in some fanfictions, Robin's knowledge could help Zoro in his swordsmanship journey, like providing him with historical information about some special swords or fighting techniques from the past.