Well, you could have an OC who is a half - blood trying to keep their identity a secret. The Marauders could accidentally discover it and help the OC deal with the potential consequences. Or an OC who is a seer and has visions about the future of the wizarding world during that time, which could include the rise of Voldemort. The OC could then try to enlist the help of the Marauders to prevent it. Also, an OC with a time - traveling device that malfunctions and lands them in the Marauders era, and they have to find a way to get back while interacting with the Marauders and other characters.
A believable character in Marauders era oc fanfiction needs a well - developed backstory. Maybe they grew up in a small wizarding village or in a big city like London. Their family situation is also important. If they have a large family, it could shape their social skills. If they are an only child, they might be more independent. Their appearance can also play a role. For instance, if they have bright red hair, it might make them stand out. Their hobbies are another aspect. If they love reading, they could be spending a lot of time in the Hogwarts library and might meet the Marauders there while looking for a particular book.
The main characters are Harry Potter for sure. He's the one who is reborn into the Marauders era. Then there are his parents, James and Lily. They are important as Harry gets to know them in a whole new way. The Marauders are also central. Sirius, with his wild and loyal nature, Remus with his werewolf secret, and Peter, who later betrays them in the original story. Their relationships with Harry add a lot of depth to the story.
In such fanfiction, a plot point could be Harry's relationship with Snape. Since he knows Snape's story from his own time, he might try to change their relationship for the better. Maybe he could help Snape deal with his feelings for Lily in a more positive way. Also, Harry's experience with dark magic threats in his time could make him more proactive in dealing with the early signs of Voldemort's rise in the Marauders era.
I would recommend 'Snape's Hidden Love'. It's a fanfiction where the OC is a new student in Hogwarts during the Marauders Era. She first clashes with Snape but then gradually they develop a deep connection. The story also has great details about the Marauders' antics in the background, which adds to the authenticity of the era. There's also 'Love in the Shadows of Hogwarts'. This fic delves deep into the complex emotions of Snape and how the OC manages to break through his tough exterior.
One common theme is friendship. Since the Marauders were known for their tight - knit group, OCs often form strong friendships with them. Another is adventure, as they go on various quests and escapades.
First, do a lot of research on the Marauders Era. Know the characters, the setting, and the overall atmosphere of Hogwarts at that time. For creating the OC, give her a distinct personality, backstory, and magic abilities. When it comes to the relationship with Snape, think about what could draw them together. Maybe she shares his love for potions or has a similar experience of being an outcast. Start with a strong opening scene that sets the tone for their relationship, like their first encounter in the Hogwarts corridors.
One popular marauders era fanfiction is 'All the Young Dudes'. It delves deep into the lives of the Marauders during their Hogwarts years, exploring their friendships, rivalries, and the complex relationships within the group. It also adds new elements to the existing wizarding world lore.
Another one is 'Marauders and the Unseen OC'. Here, the OC brings a fresh perspective to the Marauders' group. The author does a great job of making the OC's interactions with the known characters feel natural and engaging.
One great fanfic in this genre is 'All the Young Dudes'. It delves deep into the Marauders' time, with Harry's presence adding a really interesting dynamic. It shows how his knowledge from the future affects the events and relationships in that era. The characterizations are well - done, making it a must - read for fans of this concept.