Well, as of the latest manga chapters, Yamato has indeed become a part of the Straw Hats. This decision brings new dynamics and adventures to the crew.
It could be Chopper. Since Chopper is a doctor and Reiju has some medical knowledge, they might bond over sharing medical techniques and treating the crew's injuries. Also, Chopper's kind - hearted nature would make him a great friend for Reiju who might be used to a more cut - throat family environment.
Popular fanfiction often has strong character development. For example, it might explore Luffy's leadership in more depth or show how Zoro overcomes a new kind of sword - related challenge. Another characteristic is unique plot twists. Maybe the Straw Hats find a way to reverse a Devil Fruit power in a fan - made scenario. Also, good fanfiction keeps the essence of the original One Piece world, like the importance of friendship and the pursuit of dreams within the crew.
Well, one possibility is that Reiju could bring her unique skills like her combat abilities or her knowledge of certain technologies to the Straw Hats. Maybe she joins them to seek adventure away from her family's influence. She could also form interesting relationships with the crew members, for example, having a sister - like bond with Nami due to their shared intelligence in different areas.
In a fanfiction where Smoker joins the Straw Hats, it could be really interesting. Smoker is a marine, and his sense of justice is quite different from the Straw Hats' view of freedom. At first, there would likely be a lot of tension. But as time goes on, he might start to understand their way of life. For example, he could see how they help the weak and oppressed in their own unorthodox way. He might also learn to be more flexible in his views of right and wrong, as the Straw Hats often operate outside the normal rules. And his combat skills would be a great addition to the crew, making them even more formidable in battles against stronger enemies.
In a fanfiction where Naruto joins the Straw Hats, the dynamic of the crew would change significantly. Naruto is used to working in teams in his own world, and his experience in forming strong bonds with his comrades would blend well with the Straw Hats' own sense of camaraderie. His ability to make friends easily would also help him fit right in. Plus, his shadow clone jutsu could be used for various tasks on the ship, like helping with repairs or keeping watch.
Well, he would probably make the Straw Hats extremely powerful. His ninja skills like shadow clones and rasengan could be used in creative ways during battles at sea. For example, he could use shadow clones to man the ship while the others fight or use rasengan to blast away powerful sea monsters.
Well, if Captain Kuro joins the Straw Hats in the fanfic, it could bring a lot of chaos at first. He has his own devious ways and skills. But maybe he could be reformed. The Straw Hats are known for their ability to change people. He might use his intelligence in a more positive way for the crew, like helping them plan strategies against other pirates or find hidden treasures.
If Smoker joins the Straw Hats in fanfiction, the development might be slow. At first, he would struggle to fit in with their laid - back and often rule - breaking ways. But his sense of justice could lead him to find common ground. For example, he might see that the Straw Hats are fighting against corrupt forces, just in a different way than the Marines. As the story progresses, his character could evolve. He might start to see the world from the Straw Hats' perspective and become more accepting of their methods. This would not only change him but also affect how the Straw Hats view the Marines in general.