There's a story on AO3 where Batman visits Hogwarts to investigate some strange disappearances. What makes it stand out is how well the author captures Batman's detective skills in the magical setting. He's able to use his gadgets and his wits to figure out that a Slytherin student is using a dark magic spell that's related to a DC Comics - style super - power experiment gone wrong. It's a complex and engaging plot.
I also like a fanfic where Wonder Woman is sent to the Harry Potter world as an exchange student. It's interesting because she has to adapt to the rules of magic and the social structure of Hogwarts. At the same time, she teaches the students about her Amazonian values. The story does a great job of showing how two very different cultures can interact and learn from each other.
One great place to find Harry Potter and DC Comics crossover fanfiction is on Archive of Our Own (AO3). There are many creative stories there. Some might have Harry Potter characters using magic in the DC universe, like Harry using spells against villains in Gotham. Others could involve DC heroes and villains in Hogwarts, perhaps Batman trying to solve a mystery within the castle walls.
One great 'Harry Potter DC crossover fan fiction' is 'The Wizarding World of Gotham'. It combines the magical elements of Harry Potter with the dark and gritty atmosphere of DC's Gotham City. In this fic, Harry Potter finds himself mysteriously transported to Gotham and has to navigate the dangerous underworld while also using his magic subtly. Another one could be 'Superman in Hogwarts'. It's interesting as it shows how Superman's powers and his moral code interact with the magical rules and hierarchy at Hogwarts.
One idea could be that Harry Potter and his friends are transported to the DC Comics universe. They could team up with the Justice League to fight a common enemy like Voldemort who has somehow gained powers from a DC Comics villain. For example, Voldemort could have made a deal with Darkseid to gain more power in exchange for helping him conquer the wizarding world first. Then, Harry and the likes of Superman, Batman, and Wonder Woman would have to combine their magical and super powers to stop them.
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.
One of my favorite examples is when Harry is having a really bad day after a particularly tough encounter with the Death Eaters, and Hermione just sits with him in the Gryffindor common room, making him a cup of tea and listening to him rant. It's a simple act of love and comfort. Another is a fanfic where Ginny writes Harry little love notes that he finds hidden in his books, giving him a boost of confidence and love during difficult times.
I think 'Batman: The Dark Knight Returns' is one of the best. It's got a gritty and mature take on Batman that's really engaging.
One common theme is the clash of different power systems. In Harry Potter, there's magic, and in DC, there are super - powers. Fanfictions often explore how these two types of powers interact, whether they complement each other or cause conflict.
Definitely Harry Potter and Batman. Batman is known for his detective skills and strategic thinking, while Harry has his own brand of resourcefulness and knowledge of magic. They could work together to solve a mystery that involves both the wizarding world and Gotham City. Maybe there's a dark wizard causing trouble in Gotham, and Batman needs Harry's help to understand the magical aspects of the case.
You can start by searching on popular fanfiction websites like Fanfiction.net or Archive of Our Own. Use specific keywords such as 'Harry Potter DC crossover' in the search bar. Check the ratings and reviews of the fanfictions that come up. High - rated ones with positive reviews are usually a good bet. Also, join fanfiction forums or groups dedicated to either Harry Potter or DC and ask for recommendations from other fans.
A popular one is 'Fem Harry and the World of Middle - earth'. This fanfic is really interesting because it crosses over the Harry Potter universe with Tolkien's Middle - earth. Here, Fem Harry has to adapt to the very different cultures and magic systems in Middle - earth, and there are some great character interactions that add depth to the story.