A more complex plotline could be that the OC student has a mysterious family background that somehow ties into Snape's past. For example, the student's family might have been involved in the same dark magic events that Snape has been a part of. As they interact, they start to uncover secrets about their families and their own destinies, all while dealing with the challenges of Hogwarts life and the brewing war in the wizarding world.
Another plot might involve the OC student being a target of bullying, and Snape, despite his tough exterior, secretly helps the student out. He might use his position to keep the bullies at bay, and in the process, the OC student starts to see Snape in a different light. They could then form a bond based on their shared experiences of being misunderstood in the wizarding world.
One interesting plotline could be the OC student being a talented potion - maker and Snape taking them under his wing as a sort of protege. This could lead to a lot of one - on - one time in the potions dungeon, where they gradually develop a mutual respect and an unexpected friendship.
Some fanfictions have a plotline where the OC is a healer who is called to Hogwarts to deal with an epidemic of a magical illness. Snape is initially skeptical of her methods, but as she starts to make progress, he becomes more interested in her work and in her as a person. This kind of plotline allows for a lot of character development for both Snape and the OC, and also shows the different aspects of the wizarding world's medical and magical practices.
One great Snape OC student fanfiction is 'The Hidden Talent'. It features an OC who has a unique magical ability that Snape discovers. The story has great character development and an interesting plot that keeps you hooked.
A common plotline is an alternate universe where Snape is not as bitter and Hermione befriends him more easily. They could be involved in a battle against a new dark force, and their combined intelligence and magic powers are crucial for victory. Also, there could be a plot where Hermione accidentally enters Snape's mind through some experimental magic and discovers his deepest secrets, which then changes their relationship.
First, create a well - rounded OC. Give them unique traits, a backstory, and clear motives. For example, if your OC is a shy student, explain why. Then, develop a relationship with Snape that is believable. Maybe they share a common interest in a rare potion ingredient.
There could be a fanfiction where a student is magically bonded to Snape in an accident. As they navigate through this strange situation, they learn more about each other. The student realizes that Snape's harsh exterior is a cover for his past traumas, and Snape sees the potential in the student that he had overlooked before. This kind of plot delves deep into their relationship and personal growth.
Perhaps a plot where Severus discovers his demigod heritage and has to balance it with his life at Hogwarts. He could struggle with how to use his new - found powers without drawing too much attention, while also dealing with his complex relationships with other characters like Harry Potter.
One interesting plotline could be Snape realizing that Harry is not like the 'Boy Who Lived' (WBWL) as everyone expected. Maybe Harry has a different approach to magic that Snape initially scoffs at but later comes to respect. For example, Harry might be more interested in the darker arts in a way that challenges Snape's views.
Well, sometimes in these fanfictions, a great plotline is Snape trying to protect Luna from the bullies at Hogwarts. Given Snape's own experiences of being bullied as a child, he would be very determined to make sure Luna doesn't go through the same. He might use his position as a teacher to subtly intimidate the students who pick on her. Also, there could be a plot where Luna starts to teach Snape about the beauty of the natural magic around them. Snape is so focused on the academic and often darker aspects of magic, that Luna's view of the magic in simple things like a butterfly's flight or the way a flower blooms could be eye - opening for him.
One interesting plotline could be exploring Snape's early interactions with the Marauders. Maybe it shows how his enmity with them truly began. For example, it could focus on a particular incident in their school days that was a turning point.
One interesting plotline could be Hermione's struggle to adjust to living with Snape. She's used to the warm and inclusive environment of Gryffindor, and Snape's dark and brooding personality makes it a big change for her. Another could be Snape seeing Hermione's potential not just as a student but as a daughter figure, and he starts to teach her advanced magic privately, which in turn helps Hermione to solve some of the school's mysteries.