Yes, there are quite a few. Some explore the idea of how Harry's life would be different growing up as Draco's little brother in the wizarding world. It often involves re - imagining the relationships between characters like Harry, Draco, and their respective families.
Towards the end, their relationship could become a very strong and unique one. They could be each other's closest confidants, with Harry being the one Draco turns to when he has doubts about the pure - blood ideology, and Draco being the person Harry trusts to keep him safe in the Slytherin common room. Their bond would be a mix of brotherly love and mutual respect.
One common theme is family dynamics. Since Harry is now part of the Malfoy family, there are a lot of changes in how he interacts with his new family members, including Draco. Another theme is identity. Harry has to re - evaluate who he is in this new context.
Well, it could have some interesting plots. Maybe Harry being Draco's little brother would lead to a whole new dynamic in the Hogwarts hierarchy. It might change the way the houses interact and the relationships between characters like the Weasleys and Harry.
One possible plotline could be Harry growing up in the Malfoy family. He might struggle with the Slytherin values that his family adheres to, while still having his own sense of Gryffindor - like courage. For example, he could secretly befriend Hermione and Ron against his family's wishes.
Draco could also change. Having Harry as his brother might make him more protective or more competitive. He might also start to see the flaws in his family's beliefs. As for other characters, Ron and Hermione might view Harry differently and their friendship could be strained or strengthened in new ways.
One possible plot could be that Harry would grow up in a very different environment. He might be influenced by the Malfoy family's pure - blood supremacist views at first. But then, as he discovers his own values, he could face a huge internal conflict. He may also have a different relationship with the other Hogwarts students. For example, he might not be as close to Ron and Hermione as in the original story because of his family ties to Draco.
Often, he is used to create more complex family relationships. He might be caught between Draco's actions and his own beliefs. He could try to redeem the family name in some fanfictions, which adds a new layer to the Malfoy story. He may also be in a love triangle or have some other romantic entanglements that further complicate his character and the overall plot.
Draco's character development might involve him breaking away from the traditional Slytherin values. Being Harry's brother, he could be influenced by Harry's Gryffindor - like qualities. He might start to question the pure - blood supremacy ideas he was brought up with and become a more inclusive wizard. For example, he could start making friends with muggle - borns, which is a huge shift from his original character.
In Hogwarts, it would be a wild change. Draco would be super conflicted. He's been taught to look down on Gryffindors and half - bloods like Harry. But with Harry as his brother, he'd have this internal struggle. Harry would probably be more open to Draco than Draco is to him. Harry would hope to convert Draco to a more accepting way of thinking. There would be times when Draco would be mean to Harry in public to keep up appearances, but in private, he might start to question his own beliefs because of their relationship.