Draco Malfoy and Kaname Kuran could be an interesting pair. Draco is from a wealthy and powerful pure - blood wizard family, and Kaname is a powerful pure - blood vampire. They both have an air of superiority about them. It would be interesting to see how they interact, whether they become rivals or somehow find common ground. Maybe Draco would be intrigued by Kaname's vampiric powers and try to use them for his own gain, or Kaname might see Draco as a useful ally in his own plans.
Definitely Harry Potter and Ichigo. Harry is used to dealing with the mystery and danger in the wizarding world, while Ichigo has his own battles against Hollows and the like in Bleach. Their different powers and personalities would create a great dynamic. They could learn from each other's strengths and overcome their weaknesses together. Another interesting combination could be Hermione and Rukia. Hermione's intelligence and knowledge of magic could be paired with Rukia's experience as a Soul Reaper.
Hermione Granger would be a great choice too. Her thirst for knowledge would lead her to study the lore of the Highlanders intensively. She could figure out ways to use magic to either protect Immortals or find a way to end the immortality curse if she saw it as a danger. Her intelligence would make her a force to be reckoned with in the Highlander's world.
Ichigo and Kaname would be a very interesting pairing. Ichigo is hot - headed and always ready to fight for what's right, while Kaname is more calculating and mysterious. Their different personalities could lead to some great interactions, whether they're clashing or working together. Maybe they could learn from each other's ways of protecting their people.
Hermione and Tsukune Aono could be another great pairing. Hermione's thirst for knowledge would match well with Tsukune's curiosity. Tsukune, being a human in a vampire school, has had to adapt and learn quickly, much like Hermione in the wizarding world. They could exchange their knowledge about their respective worlds, and together they might come up with unique solutions to problems that arise in the crossover story.
A werewolf and Zero from Vampire Knight would be an interesting combination. Zero has his own internal struggle with his vampire side, and adding a werewolf into the mix could either be a source of conflict or an unexpected ally. The werewolf's wild and free nature might contrast with Zero's brooding and complex personality.
Yuki is also a great choice. Her dual identity as a human raised among vampires gives a lot to work with. You could write about her trying to find her true place in the world. For instance, she might start to question whether she really belongs with the vampires or if she should try to fully embrace her human side. She could also have new relationships with other characters that further explore her identity.
Definitely Harry Potter and Spider - Man. Harry could teach Peter about the magical world, like how to use a broomstick. And Peter could show Harry how to use his web - slingers in a more creative way in combat. They're both young heroes with a strong sense of justice, so they'd get along well.
Harry and Naruto would be an obvious and very interesting pairing. They are both the main heroes in their respective stories, so seeing them interact, share their experiences, and learn from each other would be great. Hermione and Sakura could also be a fascinating pair. Both are intelligent and strong - willed female characters. Hermione could teach Sakura about complex magic theories, while Sakura could show Hermione some of her medical ninjutsu skills.
Harry Potter and Aladdin would be a very interesting pairing. Harry is used to the more structured magic of the wizarding world, while Aladdin has his own unique magic style. They could learn a lot from each other. Another great pairing could be Hermione and Morgiana. Hermione's intelligence and thirst for knowledge could be paired well with Morgiana's strength and loyalty.
Well, in 'harry potter x vampire knight fanfiction', a cool concept might be the introduction of Hogwarts students into the Cross Academy. It would be fascinating to see how they adapt to the day - night system and the different classes there. Also, the idea of a vampire attending Hogwarts secretly could bring a lot of drama. They would have to hide their true nature from the other students and teachers, and at the same time, learn magic. It could lead to some really intense storylines.