One great fanfiction has Harry Potter and Draco being sent back in time by a malfunctioning magical artifact. In the past, they find themselves in the middle of the formation of Hogwarts. They have to adapt to the very different magical environment and social norms. As they try to find a way back to their own time, they end up influencing the founding of Hogwarts in small but significant ways, like suggesting new rules for the houses that promote unity among students.
One possible fanfiction could be that Draco, after realizing the error of his ways, uses a time - turning device to go back in time. He teams up with Harry Potter to prevent certain dark events from occurring in the wizarding world. They might work together to stop Voldemort's rise to power earlier, changing the fate of many characters.
One idea could be a story where Hermione and Draco are paired up for a special project at Hogwarts. They start off hating each other as usual, but as they work together, they begin to understand each other better. Harry could be suspicious at first, but then realizes that their newfound friendship could be beneficial for the wizarding world. For example, Draco might share some Slytherin secrets that help in a battle against the dark forces.
One great 'Harry Potter' fanfiction with Neville and Draco is 'The Unlikely Bond'. In it, they are forced to work together on a school project. At first, they clash due to their different personalities and house loyalties. Draco is his usual snobbish self, while Neville is shy but determined. As the story progresses, they start to understand each other better. Neville shows Draco the importance of kindness and hard work, and Draco helps Neville become more confident in standing up for himself.
In some werewolf fanfictions, Harry and Draco could be turned into werewolves together. They then have to navigate the werewolf world, which is full of its own politics and hierarchies. This could be a really interesting exploration of their characters as they face new challenges outside the normal wizarding world they are used to.
In some fanfictions, Sirius Black time travels to the past and teams up with his younger self. They work together to expose the Death Eaters' plans earlier. This creates a really cool dynamic as the older Sirius has more experience and the younger one has more energy and impulsiveness.
One idea could be that Draco Malfoy, for some reason, has to work in a Muggle pizzeria as part of a new Ministry of Magic initiative to promote understanding between wizards and Muggles. Harry Potter could be a regular customer, and there could be all sorts of awkward and comical interactions as Draco tries to keep his wizard identity a secret while serving pizza.
I'm not sure. Maybe they got lost in the magical chaos or were hidden by a mischievous spell.
One interesting time - travel fanfiction could be 'A Twist in Time'. In this fic, Lucius Malfoy accidentally travels back in time and has to deal with a young Harry Potter. It's a really cool take on how their relationship could be different in a time - altered scenario. Another one might be 'Time's Ripple' where Harry discovers a time - traveling device and ends up in a past where Lucius has a different role in the wizarding world. It plays with the power dynamics and the mystery of time travel in the Harry Potter universe.
One common plot is the attempt to prevent a dark event from happening in the past, but it backfires. For example, a character tries to stop Voldemort's rise to power in his early days, but instead ends up making him even more powerful. Another plot could be a character using dark time travel to steal powerful magic from the past for their own gain, but then having to deal with the wrath of the wizarding community when they return to the present.
One great 'Harry Potter Draco Malfoy Time Travel' fanfiction is 'Back in Time' where Draco travels back to his first year at Hogwarts. He has the chance to change some of his actions and relationships. It's really interesting to see how his knowledge of the future affects his past self.