One idea could be to have the Avengers transported into the Harry Potter world. They could use their powers and skills to help in the fight against Voldemort. For example, Thor could use his lightning powers against the Death Eaters, and Iron Man could provide technological support to Hogwarts' defenses.
Another option is a fusion of the two worlds. So, instead of two separate universes colliding, it's a world where magic and advanced technology co - exist from the start. The Avengers could have members who are also wizards or witches, and Hogwarts could have a course on advanced Muggle technology. This would create a whole new set of rules and dynamics for both the Avengers and the Harry Potter characters to navigate.
One idea could be that Voldemort teams up with a powerful Marvel villain like Thanos. This would force the Avengers and the Harry Potter characters to join forces. The Avengers could bring their strength and high - tech weapons, while the Harry Potter characters use their magic. Another plot could be that a magical artifact from the Harry Potter world is lost in the Marvel universe and both groups have to search for it. Maybe it has the power to destroy both universes if misused.
One idea could be that Voldemort somehow makes an alliance with Loki. The Avengers would then have to team up with Harry, Hermione and Ron to stop them. They could combine magic and superpowers in battles. For example, Iron Man could use his technology to analyze and counter some of the dark magic spells while Harry uses his Patronus to protect the group from Loki's illusions.
One idea could be that the Avengers find themselves magically transported to the wizarding world. Thor, with his Asgardian magic, might have an interesting interaction with the Hogwarts professors. Maybe they team up to fight a new, combined threat that is both magical and technological.
One idea could be that the Avengers are transported to the wizarding world. Iron Man could be fascinated by the magic technology and try to incorporate it into his suit. Another could be that Voldemort somehow gets hold of the Infinity Stones and the Avengers have to team up with Harry Potter and his friends to stop him. Maybe Thor's hammer could be enchanted by a Hogwarts spell to have new powers.
One idea could be that Voldemort teams up with a villain from the Avengers universe, like Loki. This would force the heroes from both worlds to join forces. The Avengers could use their high - tech weapons and superpowers, while the Harry Potter characters would bring their magic to the fight.
One idea could be a time - travel plot where some of the Avengers are sent back in time to the world of Harry Potter. They have to blend in, learn about magic, and help the young wizards defeat Voldemort before he becomes too powerful. Another could be a story where the magic from Harry Potter starts seeping into the Marvel universe, causing chaos. The Avengers then have to team up with Harry Potter characters who have also been transported to their world to reverse the magic spill and restore order.
One interesting idea could be a fanfic that focuses on the Marauders' time at Hogwarts. It could explore their pranks, friendships, and how they came to be the legends that we hear about in the original books. For example, showing how they created the Marauder's Map in more detail.
One interesting idea could be a fanfic where the Marauders attend Hogwarts during modern times. They'd have to deal with things like smartphones and social media while still maintaining their mischievous ways. Another could be a story that focuses on the lives of the house - elves after the events of the books, perhaps exploring their newfound freedom. And a third idea could be a fanfic about a new dark wizard emerging in the wizarding world years after Voldemort's defeat, and how the new generation of Hogwarts students respond.
A great 'Harry Potter fanfic' idea might be a story that delves deeper into the relationship between Snape and Lily. Maybe a fanfic where Snape has a chance to change the past and save Lily in a different way. Another idea is to write a fanfic about the ghosts in Hogwarts and their backstories, like how they died and why they chose to stay at the school. Additionally, a story where the Weasley twins open a magical joke shop in a different country and the challenges they face there would be really interesting.
One interesting idea could be exploring the lives of the minor characters more in - depth. For example, what was Neville Longbottom's life like during the summers at home? Another idea is to create an alternate ending to the series. Maybe Voldemort could have been redeemed instead of defeated. Also, a fanfic could focus on the magical creatures and their own society within the wizarding world.