Some fanfictions might explore justice for the 'mudbloods' who face discrimination. It could show a world where the pure - blood supremacist ideas are quickly quashed and those who have been bullied or looked down upon due to their non - pure - blood status get justice. For example, students like Hermione are no longer taunted and instead are respected from the start.
One interesting 'and justice for all Harry Potter fanfiction' story could be where the House - elves finally get equal rights in the wizarding world. In the original series, they are treated as servants, but in this fanfiction, Hermione's S.P.E.W. idea actually comes to full fruition. Wizards and witches start to see House - elves as equals, and they are given the right to education and proper wages.
One possible plotline could be Harry Potter taking on the corrupt Ministry of Magic to ensure fair treatment for all magical beings. Maybe he discovers some dark secrets within the Ministry and decides to expose them to bring about justice.
A really cool crossover concept could be a combined threat that requires both the skills of the Justice League and the magic of the Harry Potter world to defeat. Maybe a powerful alien sorcerer arrives on Earth. The Justice League's superpowers alone aren't enough, so they team up with Harry Potter and his friends. Harry could use the Patronus charm to fend off the dark magic of the alien, while the Flash could use his speed to quickly deliver magic items to different locations as needed.
Perhaps in the fanfiction, Voldemort teams up with some of the Justice League's villains. This would force the heroes from both universes to work together. The wizards could teach the superheroes about magical defenses, and the superheroes could share their combat and strategic skills. Also, imagine Hermione tutoring Batman on advanced magical theories. It would be really cool to see how their different worlds' knowledge would interact.
In some fanfictions, Harry Potter seeks justice for the wrongs done to the house - elves. He could fight against the discriminatory treatment they face in the wizarding world, perhaps by introducing new laws or creating a sanctuary for them.
One idea could be that Harry Potter is magically transported to the DC Universe and is mistaken for a meta - human. The Justice League initially views him with suspicion but then realizes his unique magical abilities could be an asset in fighting a new, magic - based threat.
One interesting crossover could be Harry using his magic in the world of the Justice League. For example, he could use spells like 'Accio' to retrieve important items during a Justice League mission. Maybe he'd team up with Superman and use magic to enhance Superman's powers in a unique way.
One interesting Harry Potter fanfiction could be about an alternate universe where Harry is sorted into Slytherin. This changes his whole dynamic as he has to navigate the house known for its cunning while still having his moral compass intact. Another might be a story where Hermione discovers a new branch of magic that has been long forgotten, and she uses it to solve a mystery in Hogwarts. There are also those that explore the backstories of minor characters, like Neville's grandmother and her adventures during her time at Hogwarts.
There are many great 'Harry Potter' fanfiction stories. For example, some focus on alternative universes where the characters have different destinies. There are fanfictions that explore what would happen if Harry was sorted into Slytherin instead of Gryffindor. It could lead to a whole new set of friendships and rivalries, and a different path in his fight against Voldemort.
One interesting Harry Potter fanfiction could be about an alternate universe where Harry is sorted into Slytherin. It shows a different side of his character development as he has to navigate the house known for its cunning. Another great one might be a story that focuses on the Marauders' time at Hogwarts in more detail, exploring their pranks and friendships deeper.