In such a fanfiction, Harry might raise Naruto in a way that combines the values of both the wizarding world and the ninja world. He could introduce Naruto to the concept of different magical creatures, which Naruto could then try to incorporate into his ninja training. Maybe Naruto would learn how to communicate with magical animals like Hedwig, and use that knowledge to better understand the summons in his own world. Also, Harry could help Naruto with his studies, which would be a huge change for Naruto who wasn't that good at traditional schoolwork at first. This would not only make Naruto more well - rounded but also give him an edge in the ninja world with his new - found knowledge.
Harry would likely be a strict but loving mentor to Naruto. He would constantly encourage Naruto to be better and would share his own experiences of growing up an orphan. Naruto, in turn, would be eager to learn from Harry and would probably ask a million questions about the wizarding world.
One possible plot could be that the female Harry Potter, using her magic skills, finds Naruto in a different dimension or perhaps when she accidentally travels to the Naruto universe. She decides to take him under her wing. She could teach him some basic magic concepts, which Naruto might adapt in his own unique way for his ninja skills. For example, he could use the idea of transfiguration to change the appearance of his shadow clones in a more complex way.
One idea could be that Snape takes Harry in secretly. He teaches Harry advanced potions and magic in a more personal way, away from the prying eyes of Hogwarts. Harry begins to see Snape in a new light, not as the mean professor but as a strict yet caring guardian.
Perhaps it could be Thor from Norse mythology. Thor is the god of thunder. So, Harry could have the power to control lightning or storms. He would be a very formidable wizard with such powers. His Hogwarts years would be full of situations where he uses these thunder - related powers to solve problems or fight off enemies.
If the Joker were to raise Harry Potter fanfiction, it might imply a distortion of the normal fanfiction creation process. Since the Joker is often associated with chaos, perhaps he would introduce some sort of chaotic element into the world of Harry Potter fanfiction. For example, he could inspire fanfiction that has a more dark and twisted take on the Harry Potter universe, which would be very different from the typical fan - created stories that are more in line with the original's themes of friendship, magic, and good versus evil.
One possibility could be that Harry, with his knowledge of magic and experience in fighting dark forces, takes Tsuna under his wing in the magical world. He could teach Tsuna about different spells and how to handle magical creatures, which would be a new and exciting experience for Tsuna who is used to his own world in 'Katekyo Hitman Reborn!'.
Well, in this fanfiction, Kakashi might introduce Harry to the concept of chakra. Since Harry has magic, Kakashi could find a way to combine the two powers. Maybe Harry would learn to use chakra to enhance his spell - casting speed or accuracy. And Kakashi would also help Harry deal with his emotional traumas, like the death of his parents, in a more ninja - like, stoic way.
Well, in this fanfiction, Deadpool might raise Harry Potter in a world where the two universes collide. Deadpool could introduce Harry to the concept of fourth - wall breaking, which would be really strange for Harry. He could also take Harry on adventures that involve both the wizarding world and Deadpool's own crazy world filled with mercenaries and mutants, leading to some really unique and comical situations.
Maybe Harry starts raising chickens because he wants to have a normal, non - magical hobby. He finds some regular Muggle - like chickens in a nearby village. As he raises them, he realizes that they have an uncanny ability to sense dark magic. So, they become like an early warning system for any approaching danger at Hogwarts. This could lead to all sorts of adventures where Harry has to protect his chickens from dark wizards who want to use their power for evil.