Hermione could be a great main character in an elementalist fanfiction. Her intelligence and thirst for knowledge would make her eager to learn about and master elemental magic. She could be the one to discover a long - lost elemental spell book and start exploring the powers.
It could be a new student at Hogwarts who has a natural talent for dealing with beasts. This student could be from a family that has always had an affinity for magical creatures but has kept it a secret until now.
A Muggle - born mouse. It could be a unique concept where a mouse from the Muggle world somehow ends up in the wizarding world. It would be interesting to see how it copes with all the magic and the rules of the wizarding society.
Neville could also be a main character in this type of fanfiction. He could stumble upon a clockwork - related mystery in the Hogwarts gardens. Maybe there are some clockwork - powered plants that are acting strange. Neville, with his new - found confidence, takes it upon himself to solve the mystery and in the process, uncovers a deeper secret about Hogwarts and its connection to clockwork magic.
A young witch who was raised by dragons after being lost in the mountains as a child. She returns to the wizarding world as a dragonspeaker and has to adapt to human society while also using her skills to protect both the dragons and the wizards. She could be the main character as she bridges the gap between the two worlds.
How about Neville Longbottom? He could be the main character in a fanfiction set in the Chamber. Neville, who has always been underestimated, could show his true courage and strength. He might discover a hidden ability that helps him face the challenges in the Chamber, perhaps something related to his connection with plants, which could play a crucial role in defeating the Basilisk or whatever new threat is in the Chamber.
It could be an original character created by the fanfiction writer. Maybe a young wizard or witch who has always felt like an outsider in their own family or at Hogwarts. They decide to set out on their own to find their true place in the wizarding world.
Harry Potter himself could be the main character in a 'harry potter ninja assassin fanfiction'. Imagine if he discovered a hidden part of his heritage that involved ninja - like training. He could then use his new skills along with his magic to fight against Voldemort and his Death Eaters in a more stealthy and unexpected way.
It could be a new student at Hogwarts who hails from Camden. This student might bring with them a different perspective on magic, having grown up in Camden. They could be the one to lead the victory, using their Camden - born ingenuity to outwit the villains.
Harry Potter himself could be the main character. Since he has faced death so many times in the original series, it would be interesting to see how he interacts with the concept of Death from the Endless.
A new character could be the main character in this fanfiction. Maybe a transfer student from a far - off magical school who has the siren inheritance. This character would bring in a fresh perspective to the Hogwarts environment. They would have to learn about the ways of Hogwarts while also dealing with the challenges and opportunities that come with their siren heritage, and make new friends and enemies along the way.