Well, perhaps the plot could involve McGonagall hiding Harry's true identity from everyone, including Harry himself at first. As Harry discovers the truth, he has to come to terms with a whole new family history. This could lead to him having different loyalties and relationships within Hogwarts. For instance, he might be more involved in the inner workings of the school due to his connection to McGonagall. And in the fight against Voldemort, his role could be redefined as he has the added support and protection of McGonagall in a more personal way.
A possible plot could be that when Voldemort attacked Harry's parents, McGonagall was actually there and managed to save Harry at the last moment. She then decided to raise him as her own. As Harry grows up, he shows great magical potential. At Hogwarts, he faces the challenges of being the son of a well - known and respected professor. There could be jealousy from other students, but also a lot of support from those who respect McGonagall. In the battle against Voldemort, Harry's connection to McGonagall gives him unique advantages, like access to her knowledge and a stronger connection to Hogwarts itself, which could play a crucial role in the final showdown.
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.
Yes, there are likely fanfictions out there with this concept. Fanfiction writers often come up with creative and alternative family relationships for characters. They might explore how Harry's story would be different if he were McGonagall's son, perhaps delving into different character dynamics and plot developments within the magical world of Harry Potter.
One possible plot could be that Harry discovers this fact during his time at Hogwarts. It would shock him at first, but then he would start to see McGonagall in a new light. They could have secret family meetings where she teaches him advanced magic that was passed down in the family. Another aspect could be that McGonagall becomes more protective of Harry than she already was, and this causes some tension with Dumbledore who has his own plans for Harry.
Well, perhaps Harry moves in with McGonagall because Hogwarts has been damaged and he has no other place to go. McGonagall could then take on a more motherly role, teaching Harry advanced magic and helping him deal with his PTSD from all the battles.
One possible plot could be that after some sort of danger at Hogwarts, perhaps a new dark threat, Dumbledore decides that Harry would be safer living with McGonagall. McGonagall, being strict but fair, would impose a strict study regime on Harry. She'd also teach him some advanced magic that he might not learn in regular classes. Harry would get to see a different side of her, like her love for cats which could lead to some comical moments as he tries to interact with her Animagus form.
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.
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 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.