Harry Potter himself is often still a central character. Since the sorting ceremony is a big part of the Hogwarts experience, his reaction to an alternate sorting ceremony can be explored. Hermione Granger is also commonly involved as she is very interested in the rules and traditions of Hogwarts, so any change to the sorting ceremony would pique her curiosity.
I'm not sure specifically as it's a fanfiction. But it could be new students at Hogwarts who are going through the sorting ceremony. Maybe a character who is a transfer student from another magic school and has a very different view of the sorting process.
In some 'Harry Potter alternate sorting ceremony fanfiction', there could be ideas like the Sorting Hat considering different qualities. For example, it might focus more on a student's creativity rather than just the traditional Gryffindor courage, Ravenclaw wisdom, Hufflepuff loyalty, and Slytherin ambition. Maybe a character who is very artistic gets sorted into a new, made - up house based on that creativity.
The Volturi leaders also frequently show up in these fanfictions. Aro, Caius, and Marcus. Their actions and decisions can be completely different in an alternate ending. They could be more benevolent or perhaps more devious. Their relationship with the Cullen family and Bella can take on new twists and turns.
Harry Potter himself is often involved. He might be the one to encounter the first signs of inflation, whether it's a magically inflating potion or an enchanted object. His friends, like Ron and Hermione, are also likely to be part of the story, helping him figure out what's going on.
Ron Weasley could also be a key figure. He might be Harry's loyal friend as always, standing by his side during all the changes that Harry is bringing about in the wizarding world as a god. And there could be new characters introduced as well, perhaps other gods or magical beings that interact with Harry in this new fanfiction realm.
In some cases, Albus Dumbledore could play an important role. His wisdom and power in the wizarding world would make him a key figure in any situation where the two different universes collide. He might be the one to first discover Alexstrasza's presence and figure out how to make use of her abilities in the fight against the dark forces in the Harry Potter world.
Obviously, Harry Potter himself is always a main character. He is the one most directly associated with the concept of death in the original series, what with his parents' death and his multiple near - death experiences.
Ron Weasley could be another main character. He might be initially skeptical about the piano's magic but then be amazed when he sees the extraordinary things it can do. Maybe he accidentally discovers a new function of the piano while fooling around with it in the Gryffindor common room.
Harry Potter himself could be one of the main characters in such fanfiction. Maybe he gets an automail limb after a particularly dangerous encounter with Voldemort. Hermione might also be involved, using her vast knowledge to help understand and improve the automail technology within the wizarding context.
Well, of course, Harry Potter himself is often the central figure. He's usually the one who discovers the amulet or is tasked with dealing with its powers or secrets. Hermione Granger also frequently appears, using her vast knowledge to help Harry understand the amulet.