Well, in some fanfictions, it could be due to a powerful spell gone wrong that transfers the ownership to him. Maybe a spell meant to protect Diagon Alley's property rights backfires and suddenly Harry is the owner.
He might have to deal with a lot of administrative work. Running Diagon Alley means taking care of all the shops, making sure the wizards and witches who work there are happy, and dealing with any disputes. For example, if two shop owners have an argument over a piece of land in Diagon Alley, Harry would have to step in and sort it out.
Yes, there are quite a few. You can find them on some popular fanfiction websites like FanFiction.net or Archive of Our Own. Some of these fanfictions explore unique storylines where Harry's upbringing in Diagon Alley exposes him to different magical cultures and characters earlier, leading to some really interesting twists on the original story.
Maybe it's a new character created by the fanfiction author. This new character could have special abilities or a unique backstory that ties into the reason for escorting Harry to Diagon Alley.
One idea could be a story about a young wizard who discovers a hidden, long - forgotten shop in Diagon Alley. Maybe it has magical artifacts that are tied to an ancient prophecy. Another could be a fanfic where a group of students start a secret club in Diagon Alley to practice a new form of magic that's not taught at Hogwarts. Or perhaps a story where a character has to solve a mystery involving a series of strange disappearances in Diagon Alley shops.
One common theme is the exploration of different magical sub - cultures within Diagon Alley. Since it's a hub of magic, Harry could be exposed to various types of magic that are not as prominent in the original series. Another theme could be his relationship with the magical creatures that are often found in Diagon Alley, like owls or the goblins at Gringotts.
An interesting original character could be a half - elf named Elio. He works in a Diagon Alley bakery, baking magical pastries with ingredients that have special properties. He has a troubled past, being half - elf, and is trying to make a name for himself in the wizarding world. Also, a character like a young wizard named Finn who is a bit of a troublemaker. He's always getting into scrapes in Diagon Alley, whether it's accidentally setting off fireworks in the middle of the street or trying to steal a peek at the new brooms in Quality Quidditch Supplies before they're officially released. There could also be an old wizard named Aldric who has a shop full of enchanted maps that show not only the wizarding world but also hidden realms that no one else knows about.
Harry is strolling through Diagon Alley, looking for new robes. He bumps into Daphne near Madam Malkin's. Daphne gives him a cold look at first, but Harry smiles sheepishly. Then Daphne's expression softens a bit as she realizes it's Harry Potter. They start chatting about how difficult it is to find robes that fit just right, and Daphne mentions a little - known shop where she gets her best - fitting robes.
It could be an old, retired Auror. They would have a wealth of practical knowledge about magic and how to use it in dangerous situations. They could teach Harry how to sense dark magic and protect himself better.
In the fanfic, it might lead to a tense confrontation. Harry could feel anger towards the Malfoys as they are known for their prejudice. Draco might taunt Harry as usual, and Lucius Malfoy could look down on Harry with his typical haughty attitude.