Perhaps a plotline where Ginny accidentally travels back in time and actually meets the Marauders. This would lead to a whole series of adventures as she tries to fit in with their group, while also trying not to change the future too much. She might have to help them with some of their pranks against Snape without making things worse between them.
Another plotline could involve Petunia getting involved in one of the Marauders' adventures by accident. Maybe she stumbles upon them while they are exploring a secret part of Hogwarts and has to work with them to get out of a tricky situation.
Maybe Harry finds himself in a situation where he has to team up with the Marauders to fight a common enemy that was previously unknown in the original Potter story. This would create a whole new dynamic and show how different generations of Hogwarts students can work together.
Perhaps a plotline where the Marauders' spirits or echoes are awakened in Harry's time at Hogwarts. They start guiding him in his fight against Voldemort. They teach him spells and strategies that they used during their own battles against the Dark Arts. This would give Harry an edge and also create some really heartwarming and funny interactions as he tries to keep their presence a secret from his friends.
A great plotline is when fanfiction delves into how Snape's relationship with Lily affects his interactions with the Marauders. Since he loves Lily and she is friends with the Marauders, it creates a complex dynamic. In some fics, Snape might try to protect Lily from the potential harm that could come from the Marauders' more dangerous pranks.
Perhaps a plotline where Hermione has to solve a mystery that the Marauders were involved in. The Marauders might have left behind some clues that only Hermione, with her sharp intellect and research skills, can decipher. This could bring her closer to understanding their true nature and the secrets of their time at Hogwarts.
Perhaps Hermione meets the Marauders when they are in the middle of planning one of their big pranks. They might be suspicious of her at first, thinking she's a spy or something. But then, as they get to know her, they realize she's actually really brilliant. They could end up working together on a new kind of adventure that combines Hermione's intelligence and the Marauders' mischievousness, like solving a mystery in Hogwarts that has been long forgotten.
Obviously, Ginny Weasley is one of the main characters. She's a strong - willed and brave witch. The Marauders, which include James Potter, Sirius Black, Remus Lupin, and Peter Pettigrew, are also likely to be main characters. They are known for their mischief - making and loyalty to each other. Dumbledore might also make an appearance as he was around during the Marauders' time and would surely have some role to play if Ginny is interacting with that era.
One interesting plot could be Harry time - traveling and getting to join the Marauders on one of their pranks at Hogwarts. He might learn some new spells and mischief - making techniques from them.
Well, in some of these fanfictions, there could be a plot where Draco and Harry are sent back in time and meet the Marauders. They might have to work together to solve a mystery that's related to both their times. For example, a dark magic that was sealed in the past is starting to resurface in their present, and only by combining the knowledge of the Marauders' era and their own can they stop it.
One interesting plotline could be the initial encounter between the Marauders and the Evans family. Maybe there's a bit of confusion or misunderstanding at first, like the Marauders' rowdy behavior clashing with the more subdued Evans household. Another could be the development of friendships or alliances. For example, a Marauder might form a special bond with one of the Evans siblings over a shared interest in magic or a particular Hogwarts subject.