You could write about a memory of Hermione's first time using magic as a little girl. It might show her natural talent and her eagerness to learn more. Then there could be a memory of Ron's family during a particularly difficult time, like when they were short on money but still managed to have a warm and loving home. And finally, a memory of the Marauders in their prime, causing all sorts of mischief at Hogwarts and how those memories still linger in the castle.
A plot idea could be that Ron discovers a memory in the Weasley family attic that shows a connection between the Weasleys and an ancient magical artifact. This discovery could lead to an adventure where the trio has to figure out the significance of the artifact and protect it from dark wizards who also want it for their own nefarious purposes.
Another plot could involve Harry accidentally absorbing Voldemort's memories. This would be a really complex and dangerous situation. He would have to deal with Voldemort's past traumas, his thirst for power, and also his knowledge of dark magic. It could also give Harry insights into Voldemort's weaknesses that he didn't know before.
A great plot for a Potter Manor fanfiction could involve a mystery that surrounds the manor. For instance, strange noises at night lead Harry to uncover a long - forgotten chamber. It could also be about Harry restoring the manor to its former glory, perhaps with the help of Hermione's research on ancient magic used in the construction of such manors.
One interesting plot idea could be exploring what would happen if Harry had a different upbringing, like being raised by the Malfoys. It would completely change his view of the wizarding world and his relationships. Another idea might be a time - travel fanfic where Harry goes back to the Marauders' era and interacts with his parents and their friends. This could lead to him preventing certain tragedies or changing the future in unexpected ways. And then there's the concept of a fanfic where the roles are reversed, and Voldemort is the one trying to protect the wizarding world from a greater evil, with Harry being the main antagonist.
A traveler could be from a different magical realm entirely and come to the Harry Potter universe. They bring with them unique magical abilities that both fascinate and frighten the wizards in the Harry Potter world. This could lead to a series of adventures where they either share their knowledge or are hunted down by those who fear the new magic they possess.
One idea could be that Hecate, being the goddess of magic, takes Harry Potter under her wing secretly to teach him ancient and powerful magic that Dumbledore doesn't know. This could lead to Harry having new abilities to fight Voldemort.
A possible plot in Harry Potter Planeswalker fanfiction is that a Planeswalker accidentally brings a dangerous creature from another plane into the Hogwarts grounds. This causes chaos as the teachers and students have to figure out how to deal with it. It could also be that a Planeswalker has a special connection to the magic in the Harry Potter world, like being able to sense the presence of magic in a way that wizards can't. They could use this ability to discover hidden secrets about Hogwarts or the wizarding families. Maybe a Planeswalker is on a quest in the multiverse and the Harry Potter world is just one stop on their journey, and their actions in the wizarding world have consequences for their overall mission.
One interesting plot could be a time - travel story in the Harry Potter wonderland. For example, a character goes back in time to the Marauders' era and gets involved in their adventures, while also trying to prevent a future disaster in the wizarding world. Another idea is a story where a new, powerful magic is discovered in the wonderland, and Harry and his friends have to figure out how to control it before it falls into the wrong hands. A third plot could be about an alternate reality where Voldemort won the war, and the remaining good characters have to find a way to reverse the situation in the harry potter wonderland.
One plot idea could be that Bella discovers she has a hidden magical ability that only Harry can help her understand and control. Maybe it has something to do with an ancient magic that's connected to Harry's destiny.
One interesting plot idea could be a fanfiction where the magic system in Harry Potter is reversed. Instead of wands being the main tool for magic, it's potions that can directly create magical effects without the need for incantations. Another could be a story where characters from different houses have to team up to solve a mystery that involves a new, never - before - seen type of magic that is slowly corrupting Hogwarts. And there could also be a fanfic where a Muggle - born discovers a way to use modern technology in combination with magic, creating a whole new form of spell - casting.