Sure. In this fanfiction, Harry could be raised in a world where ninjutsu is the norm. Since Obito has a rather tragic backstory, he might be overprotective of Harry. Harry could bring some of his own magic - like knowledge of spells - into the Naruto world, which would make for an interesting dynamic. He might also make friends with Naruto or Sasuke, and together they could face off against common enemies, with Harry having to balance his two very different heritages.
One possible plot could be that Harry starts to have strange dreams and visions which are actually Obito's memories. He begins to question his own identity and purpose. As he delves deeper into these memories, he might discover new magical abilities or ways of thinking that are influenced by Obito's ninja world experiences. This could lead him to form new alliances at Hogwarts and change the way he approaches the battle against Voldemort.
A possible plot could be that in a parallel dimension, Harry Potter is actually Obito Uchiha reincarnated. He is born into the wizarding world but still has some latent memories and powers from his past life as Obito. As he grows up in Hogwarts, he discovers his unique abilities which are a blend of magic and the powers of the Sharingan. He uses these to uncover a hidden conspiracy within the wizarding world that is related to an ancient dark magic that has similarities to the dark powers in Obito's original world. Along the way, he has to deal with his own inner demons, just like Obito did, and also face off against the traditional threats in the Harry Potter universe like Voldemort and his followers, but with a whole new set of skills and a different perspective due to his dual - natured identity.
Harry might start off as a confused character, not understanding his new identity. As he trains and learns more about Obito's world, he could become more confident in his abilities. He may develop a stronger sense of justice, influenced by both his wizarding world values and Obito's own complex view of right and wrong. Obito himself could also change, becoming more selfless as he tries to protect Harry and guide him.
A plot could be centered around Obito's past and how it parallels some of the characters in Harry Potter. For example, Obito's experience of loss and his turn to the dark side could be compared to Severus Snape's story. Obito could be drawn into the conflict between the Order of the Phoenix and the Death Eaters because of his own complex moral compass. He could use his knowledge of different jutsu to create new spells or counter - spells in the wizarding world, all while exploring his own redemption arc similar to some of the characters in Harry Potter.
One possible plot could be that there is some sort of magic that crosses the boundaries between the two fictional worlds. Harry is somehow transported to Middle - earth as a baby and Aragorn discovers him. He decides to raise Harry as his own. Harry then grows up with unique abilities, a combination of his wizarding powers and the skills of a ranger. He could then be involved in battles against Sauron, using his magic in unexpected ways to help the Fellowship.
One possibility could be that Harry discovers his true parentage and has to deal with the shock. He might struggle to understand why Sebastian was not in his life before. And then he could embark on a journey to learn more about Sebastian's world, meeting new characters along the way.
One possible plot could be that Harry discovers his true parentage later in life. He has been living in the wizarding world but then finds out about Wolverine. He then has to navigate between the two worlds, learning about his mutant powers and how to control them while still dealing with the threats in the wizarding world.
Perhaps the plot could involve Harry discovering his true parentage. He could be living a normal life until something happens that reveals his connection to the Undertaker. Then, he has to adapt to a whole new world filled with the Undertaker's associates and enemies. He might also have to learn special skills related to the Undertaker's work, like handling the dead or dealing with the supernatural aspects associated with it. Along the way, he could make new friends and enemies in this strange new world.
One possible plot could be that Harry discovers his true parentage as Elijah's son later in life. This revelation would turn his world upside down and he'd have to re - evaluate his place in the wizarding world.
One possible plot could be that McGonagall has been secretly raising Harry all along, away from the Dursleys. He grows up with a better understanding of the wizarding world from an early age. When he goes to Hogwarts, he has a special bond with McGonagall that makes him a target for some who oppose her. But with her guidance, he becomes even more powerful and is better equipped to face Voldemort.