Well, if Harry Potter was raised by his fans in fanfiction, it could be a total mess or something really amazing. On one hand, fans might try to protect him too much and he could end up being a bit spoiled. But on the other hand, they could also teach him things like how to deal with the media better. Since fans are so passionate about the wizarding world, they might also show him all the little details and secrets that they've discovered over the years of obsessing over the series.
In fanfiction where Harry Potter is raised by his fans, the plot could involve a lot of interesting scenarios. For example, he might be exposed to a much more modern and diverse view of the wizarding world from the start. Fans could introduce him to different magical cultures that were not fully explored in the original books. He might also grow up with a stronger sense of self - worth as fans would likely shower him with love and support, which could make him more confident in his abilities.
One possible plot could be that his grandfather, perhaps a powerful but reclusive wizard, trains Harry in unique magic from a young age. Harry might grow up with a different set of values and skills compared to the original story. He could have a closer bond with the wizarding world's older traditions.
His character would probably be more outgoing. Since fans would be around him, they'd encourage him to be social and make friends. He might be less brooding compared to the original Harry.
One possible plot could be that with his mother alive, Harry grows up in a loving and magical home environment. He might have a normal childhood in the wizarding world, without the abuse from the Dursleys. His mother could teach him magic from an early age, and he would be more confident and less scarred. He might also form different friendships as he doesn't have the 'outsider' experience at Hogwarts that he had in the original story.
The plot would change drastically. Harry would not be living with the Dursleys, so there would be no need for him to escape that horrible situation. Voldemort might have a harder time targeting him as his parents would be on high alert. There would be no letter - hunting drama. Also, his relationship with Snape would be different as his father was Snape's rival. His parents could have taught him some advanced magic from a young age, which would make him stand out at Hogwarts in a different way than in the original story.
Well, it could be that Lelouch, with his strategic mind, would train Harry Potter in the ways of politics and warfare within the wizarding world. Harry might become more calculating and less impulsive, using his magic in more creative and strategic ways under Lelouch's influence.
In a fanfiction where Harry Potter is raised in Atlantis, his relationships would be quite different. He would make friends among the Atlanteans, who could have their own unique cultures and appearances. His relationship with Hogwarts would be complicated. He might not feel as attached to it as he did in the original story, or he could bring Atlantis - influenced ideas to Hogwarts, creating a new kind of magic there.
Well, one possibility could be that Harry grows up with a very different set of values. Goblins are known for their love of gold and their shrewdness in business. So Harry might be extremely good at handling finances and valuing things in terms of their worth. He could also have a more aggressive and territorial nature, like the goblins. For example, he might be very protective of his 'territory' at Hogwarts, which could be his dorm or the Gryffindor common room.
The plot could center around Harry's discovery of his true identity. Growing up on an island, he might not know about his parents or Voldemort. One day, a strange visitor could come to the island and start to reveal the truth to him. This would set him on a journey to leave the island and enter the wizarding world he never knew, all while grappling with his new - found knowledge and the differences between his island home and the wizarding world.
In a 'Harry Potter raised by Hel' fanfiction, Harry could have a very different social structure around him. Hel might surround him with beings from Norse mythology. He would learn different forms of magic, like rune magic perhaps. His relationship with Dumbledore would be non - existent or very different. He might not even attend Hogwarts. Instead, he could be trained in a place that combines the elements of the Norse underworld and magic. His character would likely be more brooding and less inclined to trust the 'light' side of the wizarding world as he was not influenced by the positive Hogwarts environment.
One possible plot could be that Harry grows up in a small Italian village. He might attend a local wizarding school in Italy that has different traditions compared to Hogwarts. For example, they could focus more on potion - making inspired by Italian herbs and plants. His friends might be Italian wizards, and he'd have to deal with Italian - themed magical creatures.