What are some interesting 'Harry Potter justice fanfiction' stories?

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. 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.

One interesting Harry Potter fanfiction could be those that explore alternate universes, like 'The Harry Potter Who Lived'. It shows a different path for Harry where he makes different choices. Another great one might be fanfics that focus on the backstories of minor characters, for example, a story about Neville's parents before they were tortured. There are also fanfictions that pair unexpected characters in relationships, which can be really fascinating to read.

One interesting Harry Potter fanfiction could be a story where Harry discovers a hidden magical ability that was not explored in the original books. For example, the power to communicate with magical creatures on a deeper level, allowing him to gain new allies in the fight against Voldemort.