Tina, as a strong - willed Auror, might initially be skeptical. She'd be worried about the accuracy of the fanfiction in terms of the real wizarding world she knows. But after some thought, she might realize it's just a bit of fun for the fans and start to see the charm in it. She could even start to correct some of the inaccuracies in a friendly way if she ever had the chance to interact with the fanfiction writers.
Grindelwald, if he were aware of fanfiction about himself, would most likely be disdainful. He has his grand plans and a very high opinion of himself. Fanfiction that doesn't portray him as the powerful and menacing figure he believes he is would be met with his scorn. He might even see it as an attempt to undermine his influence in the wizarding world.
Then there are those characters who would be indifferent. Characters who are more focused on their own goals in the Vampire Knight world, like some of the minor vampire characters, might not care much about what is written in the fanfiction. They are more concerned with their own survival and power struggles within the vampire society, so fanfiction about them might seem like an unimportant distraction.
Some MHA characters might be flattered. For example, Midoriya would probably be really excited and take it as a sign of how much he's inspired people. He might even look for positive lessons in the fanfiction to improve himself.
Some characters might be curious. They would want to see how fans perceive them. For instance, Aunt May could be interested to know how fans write about her relationship with Peter in the fanfiction.
Yang would likely have a big reaction. If the fanfiction shows her in a cool fight scene, she'd be all for it and might even show it off to her friends. But if it portrays her in a negative or weak way, she'd be really annoyed.
Some characters might be flattered. If they are depicted as heroes in the fanfiction, it would boost their egos. For instance, Oliver Queen might enjoy reading about himself as an even greater hero than he already is.
Percy would probably find it hilarious. He has a good sense of humor and would likely enjoy the wild and crazy scenarios fans come up with. He might even share the funnier ones with his friends at Camp Half - Blood.
Naruto would be thrilled. He loves attention and the idea that people are writing stories about him would make him feel really special. He might even try to find the authors and befriend them.
Well, some might be flattered. If the fanfic shows them in a heroic or positive light, they'd probably like it. Like if it focuses on their most powerful moments and how they saved the day.
Some might be entertained. They may enjoy seeing the different scenarios that fans come up with. Like Vaggie, she might be initially skeptical but then get drawn into the creativity of it all.
Jean might be a bit embarrassed. If the fanfic has some romantic or over - the - top heroic scenes about him, he'd probably blush and try to act like he doesn't care, but secretly he'd be a bit flattered. He's always had an ego, so while part of him would be like 'this is so cheesy', another part would enjoy the attention.