Some of the best Harry Potter crossover fanfictions include those that cross over with other fantasy series like 'The Lord of the Rings'. In these, you might see Aragorn interacting with Harry Potter, and the different magic systems collide. There are also really good crossovers with the 'Twilight' series, although they are a bit more controversial. The contrast between vampires and wizards makes for some unique plotlines. Additionally, crossovers with the 'Hunger Games' can be fascinating as well, with the survival aspect of the Hunger Games set against the magical backdrop of Harry Potter.
Well, 'The Avengers and Harry Potter' crossovers are quite popular. They often bring the superheroes into the magical world of Harry Potter. Imagine Iron Man trying to figure out how magic works! 'Sherlock Holmes and Harry Potter' crossovers are also interesting. Holmes' deductive skills in the wizarding world can lead to some really engaging storylines. And then there are crossovers with 'Star Wars', where the Force meets magic, which is a concept full of potential for creative and exciting fanfiction.
One great Harry Potter crossover fanfiction is 'A Very Potter Musical' which combines the world of Harry Potter with a musical format. It has humorous takes on the characters and situations from the original series. Another one could be those crossovers with the 'Percy Jackson' series, where the magic of the two different mythologies interact in interesting ways. There are also some crossovers with 'Doctor Who' that take the TARDIS into the wizarding world and create unique adventures.
One great Harry Potter anime crossover fanfiction is 'Harry Potter in the World of Naruto'. It combines the magic of Harry Potter's world with the ninja skills and unique setting of Naruto. Another one could be 'Potter and the Bleach Adventure' which might blend the Hogwarts' wizardry with the Soul Reaper world of Bleach. And 'Gryffindor in Fairy Tail' is also interesting, as it likely fuses the Gryffindor house values and magic with the guild - based magic system of Fairy Tail.
One great one is 'The Wizard and the Caped Crusader'. It combines the magic of Harry Potter's world with the superhero action of DC. It has a really interesting plot where Harry somehow ends up in Gotham City and has to team up with Batman to fight a new kind of dark magic that's threatening both worlds. Another is 'Magic in Metropolis' which shows Superman dealing with the sudden appearance of Hogwarts students in his city. They bring chaos at first but then they all work together to face a common enemy. There's also 'Potter and the Justice League' which features Harry joining forces with the entire Justice League to take on Voldemort who has made an alliance with some of DC's villains.
I also like 'After the Battle' which focuses on the rebuilding of the wizarding world after the final battle. It shows how the characters grow and deal with the aftermath. It has some really heartwarming moments as well as some tense ones as they face new challenges.
Well, 'Lily's Boy' is a brilliant fanfiction. It focuses on Harry's life in a way that feels really fresh and in - depth. It gives more details about his relationship with his mother's side of the family. Then there's 'The Changeling' which has a unique plot where Harry has some unexpected magical abilities. 'Hermione Granger and the Time - Turner's Gambit' is also among the best. It plays around with time - turner concepts in a very creative and engaging way.
Well, 'The Debt of Time' is considered among the best. It has a really interesting plot that plays with time - travel in the Harry Potter universe. Then there's 'Hindsight' which explores what would happen if certain characters knew things in advance. Also, 'After the Rain' is great as it focuses on the aftermath of the war and how the characters heal and move forward.
Another great one could be those crossovers with the 'Lord of the Rings' universe. In these fanfictions, Harry Potter might find himself in Middle - earth, facing new challenges and making alliances with characters like Frodo or Gandalf. The contrast between the magic systems of both worlds makes for an interesting read.
Well, 'A Magical Crossover' is quite interesting. It combines the magical elements of Harry Potter with another fantasy world in a creative way without going overboard on inappropriate content. Another one could be 'Potter and the Unlikely Alliance' which also has a unique crossover concept.
One popular 'Harry Potter' saw crossover fanfiction could be 'Harry Potter in the World of Saw'. It might involve Harry and his friends getting trapped in the sadistic games of the 'Saw' universe and using their magic to try and escape. Another could be 'Hermione in Saw', focusing on how the intelligent witch would handle the complex and dangerous situations in the 'Saw' world.
One great 'Harry Potter' harem fanfiction is 'A Harem of Their Own'. It combines interesting character relationships and new plot twists within the wizarding world. Another one could be 'The Potter's Harem Adventure' which delves into how Harry manages different relationships with multiple characters in a unique way. And there's also 'Hogwarts Harem Tales' that offers a fresh take on the relationships between Harry and his friends in a more romantic and complex harem - like setting.
One of the best is 'The Black Queen' which gives Hermione a really powerful and badass role. She's not just the book - smart girl but a force to be reckoned with in the wizarding world of this fanfic. Another great one is 'Harry Potter and the Chaos of Time' where Harry has some really cool and unexpected powers that make him super badass as he battles against new and old enemies. And 'Avery Potter and the Dark Arts' also stands out. In this, Avery (a different take on Harry) masters the Dark Arts in a way that's both fascinating and makes him an extremely badass character in the story.