In such a fanfiction, perhaps Harry would grow up with a more nurturing and understanding environment. Lupin could teach Harry about the wizarding world in a very different way than the Dursleys. He'd likely introduce Harry to magic earlier and help him better understand his parents' legacy.
The story could start with Lupin rescuing Harry from the Dursleys. Lupin would then take Harry to a small wizarding cottage where they live. Harry would grow up learning about Lupin's condition as a werewolf and how to deal with it. Lupin would also introduce Harry to other friendly werewolves, which would give Harry a broader view of the wizarding community. He'd also be taught how to transform into his Patronus earlier, which could be a big advantage in his later battles against the Dark Arts.
He might be more reserved and empathetic. Remus is a rather quiet and introspective character, and Harry would likely pick up on those traits. He'd be more understanding of those with differences, like werewolves, given Lupin's condition.
He'd probably be more empathetic. Since Lupin has faced discrimination as a werewolf, Harry would be more aware of the unfairness in the wizarding world. He might be less impulsive as Lupin is a more calm and collected person compared to some of Harry's other mentors.
In such a fanfiction, perhaps Wolverine's rough and protective nature would greatly influence Harry. Harry might grow up with a fierce sense of self - defense and loyalty. He could be trained in combat skills from a young age, making him a very different kind of wizard. Maybe he'd use his magic in more physical and aggressive ways compared to the traditional Hogwarts students.
In a 'Harry Potter raised in Ireland' fanfic, perhaps he'd grow up with a strong connection to Irish magic. He might learn unique spells only known in Ireland. Maybe he'd attend a local Irish wizarding school first before Hogwarts, and make friends with Irish magical creatures.
In a 'Harry Potter raised as a Warrior' fanfiction, the story could start with Harry being found by a group of Warriors. They teach him their code of honor and how to fight. As he grows up, he becomes an expert in their ways. When he enters Hogwarts, he stands out because of his unique combat - like approach to things. He might even form his own group of friends who are interested in his Warrior - style, and together they could face the challenges of the wizarding world in a different way compared to the original story. For example, instead of relying solely on spells, he might use his physical combat skills during duels.
In this fanfiction, the ghosts might protect Harry in a way that living people can't. They could give him advice based on their long years of observing Hogwarts. For example, they might tell him secrets about the founders of Hogwarts that help him in his adventures. Also, Harry's personality could be influenced by the ghosts' ethereal and somewhat detached nature, making him more introspective.
The plot could involve Harry growing up in a world where the boundaries between Greek and wizarding magic are blurred. Hecate could introduce him to magical creatures from Greek mythology. He might also have to face different kinds of dark forces that are more related to the ancient evils that Hecate has been fighting for centuries. This would make Harry a very different kind of wizard, one with a more diverse magical knowledge and power base.
One possible plot could be that Harry Potter grows up in Mordor. Sauron might train Harry in dark magic, but Harry could have an internal struggle as he has an inherent sense of good from his parents. He might try to find a way to use the power he's learning for good, against Sauron's wishes.
Well, it could be really interesting. Maybe Sasuke would teach Harry some ninja skills. Harry might grow up with a different kind of magic, a blend of wizardry and ninjutsu. He could use his wand in a more combat - like way inspired by Sasuke's fighting style.
Well, perhaps Harry would grow up with a very different kind of magic. Circe was known for her potions and transformation magic. So Harry might be an expert in those areas from a young age. He could have a more wild and unorthodox upbringing compared to his life with the Dursleys. Maybe he'd be more in tune with nature and magical creatures that Circe might have around her lair.