I think the character interactions would be the most interesting. Naruto's friends interacting with Ruby in Naruto's body and vice versa. Their different ways of speaking and behaving would create a lot of confusion and humor. Also, how they would adapt to each other's families and teams would be really engaging. For example, how would Ruby deal with Naruto's relationship with Iruka - sensei or his rivalry with Sasuke? And how would Naruto handle Ruby's relationship with her team members in her world?
Well, if Naruto and Ruby were to body swap in a fanfiction, the story could start with a strange magical or scientific accident. Naruto might be confused in Ruby's body, trying to figure out her powers and the new world around him. He'd probably be eager to use her powers in his own Naruto - style of combat, which could lead to some really interesting and comical situations as he tries to adapt.
The most interesting part might be the way they use their new bodies to solve the mystery of how to swap back. Maybe one boy has a special skill in the other's body that they didn't have in their own, like being able to climb better or having a better memory, and they use that to figure out the clues to reverse the body swap.
One idea could be Naruto swapping bodies with Sasuke. This would lead to a lot of chaos as they have to deal with each other's relationships. Naruto in Sasuke's body would have to face the Uchiha clan's expectations, while Sasuke in Naruto's body would have to handle Naruto's friends in Konoha. Another idea is Naruto swapping with Kakashi. Naruto would get a taste of being a more experienced ninja with a lot of knowledge, and Kakashi would have to deal with Naruto's energetic and sometimes reckless nature. And also, Naruto swapping with Hinata could be interesting. Hinata in Naruto's body might become more confident, and Naruto in Hinata's body could gain a new perspective on her feelings for him.
Body swap in Naruto fanfiction often serves as a tool for character development. When characters switch bodies, they not only have to deal with the physical differences but also the mental and emotional aspects. For instance, if Naruto were to swap bodies with Hinata, he would get a first - hand experience of her shyness and her deep admiration for him. This could lead to a change in their relationship in the fanfiction story, perhaps making Naruto more aware of Hinata's feelings and more considerate towards her.
Another plot could be that the body swap was caused by a strange jutsu gone wrong. In the process of trying to fix it, they end up learning more about each other. Naruto could understand Ino's insecurities better, and Ino could see Naruto's determination and the weight of his responsibilities more clearly. This new - found understanding could change their relationship for the better even after they swap back.
The most exciting part could be the in - ring action. When the wrestlers are in each other's bodies, they'll be doing moves that are out of character. For example, a technical wrestler in the body of a brawler will be trying to brawl, and it'll be really different from their usual style. This unexpected change in fighting style can create some high - energy and exciting moments for the fans.
Naruto and Sasuke are very common in Naruto body swap fanfiction. Their complex relationship and different personalities make it an interesting swap. Also, Naruto and Kakashi are often used. Kakashi is Naruto's teacher and has a lot of skills and knowledge that Naruto could experience in a body swap. Hinata is another character who is sometimes involved in body swaps with Naruto. Her shy nature compared to Naruto's boldness creates a lot of potential for interesting storylines.
The most interesting part could be the power adjustment. An adult female suddenly having super strength, speed and the ability to fly would be quite a shock. She would have to figure out how to use these powers in a way that suits her personality. For instance, she might use the super strength more delicately than Shazam usually does.
An interesting plot could involve a strange Pokemon ability that causes the body swap. As they are in each other's bodies, they are forced to travel together to find a way to reverse it. Along the way, they encounter other trainers who notice the strange behavior and they have to come up with excuses. This leads to all sorts of adventures and misunderstandings as they explore each other's lives in a whole new way.
One idea could be that Naruto, now in Sakura's body, tries to use his usual brash and energetic fighting style but is hindered by Sakura's lack of brute strength training in her body. He might end up using his chakra control in new and creative ways to make up for it. Another plot could involve Sakura, in Naruto's body, having to deal with Naruto's reputation and the expectations of his friends. She could use her medical knowledge to help in battles in a way Naruto never thought of before.