Perhaps an outsider character, someone who is not fully part of the Hogwarts houses. This character could be a half - blood or a muggle - born who is trying to find their place in the wizarding world. In their desperation to fit in or prove themselves, they start 'playing with fire' by getting involved with dangerous magical activities that are beyond their control.
It could be a Gryffindor student. Gryffindors are known for their bravery, and sometimes that can lead to them taking risks that are like playing with fire. Maybe a young Gryffindor who is overconfident and gets into trouble by trying to prove themselves.
Well, it could be about a character who is constantly getting into dangerous situations in the wizarding world, like delving into dark magic that they know is forbidden. Maybe it's a student who is drawn to a mysterious and dangerous spellbook and starts experimenting with spells that are on the verge of being dark magic, much like playing with fire.
Hermione could be a great main character. She's smart and curious, so if she ended up in the Wings of Fire world, she would be eager to learn about the dragons and their society. She could use her knowledge of magic from Harry Potter to interact with the new world and might even try to find a way to combine the two magics.
It could be a new character, like a young Auror who has been assigned as an inspector. He would be fresh out of training and eager to prove himself at Hogwarts. He might be a bit naive at first but quickly learns the ropes and uncovers some interesting things about the school.
It could be a young witch who is just starting to explore her magical abilities outside of Hogwarts. She takes on a babysitting job to earn some extra money and ends up having all sorts of magical adventures with the kids she babysits.
A new character could be the main character. For instance, a Saiyan who has been transported to the Harry Potter universe. This character would have to navigate the strange new world of magic while also dealing with their own Saiyan instincts and powers.
It might also be a descendant of one of the well - known characters from the Harry Potter series. For example, a grandchild of Sirius Black who inherits his rebellious spirit and uses it to fight against the new dark forces as the 'darkslayer'.
A new student at Hogwarts could be the main character. They might be a bit of an outcast and find solace in the graveyard. There, they stumble upon a mystery that no one else has noticed before, and it becomes their mission to solve it. This would be a great way to introduce a fresh perspective to the Harry Potter fanfic world.
It could be a long - lost relative of Harry Potter. Maybe a cousin who was hidden away for some reason and now discovers their magical heritage. They could have a different personality from Harry, like being more shy and studious but still having a great sense of justice.
Obviously, Harry Potter himself could be the main character. Given his adventurous nature, he would be a great fit to incorporate parkour into his already impressive list of skills. He could use parkour to explore new areas of Hogwarts or to escape from dangerous situations.
Neville could also be a main character. He's often underestimated, but if he found the Harry Potter headphones, it could be his chance to shine. He could use the power of the headphones, whatever it may be, to stand up to bullies or to help protect Hogwarts. Maybe the headphones give him the confidence he needs to become a hero in his own right.