It could be that Hermione has a secret life as a part - time Animagus. She has been able to transform into an animal without anyone in Hogwarts knowing. She uses this ability to explore places she couldn't reach as a human, or to spy on the Death Eaters or other threats to the wizarding world. And she keeps it a secret because Animagus without permission can get into a lot of trouble in the wizarding society.
A plot could involve a magical accident that causes Hermione to see Dolohov in a different light. Maybe a spell backfires and she starts seeing his memories, understanding his past traumas that led him to become a Death Eater. This new understanding makes her develop feelings for him. But she has to deal with the fact that he's still on the wrong side in the eyes of the wizarding world. She might then try to subtly nudge him towards the good side while hiding her crush from everyone else.
One possible plotline could be Fleur struggling with her feelings. She might be in a situation where she has to interact with Hermione a lot, like during some magical events or projects at Hogwarts or in the wizarding world. And she gradually realizes that her feelings are more than just friendship.
One possible plotline could be that Hermione, being the intelligent and curious witch she is, stumbles upon the legend of Lucifer in the Muggle world. She becomes intrigued by the concept of such a powerful and complex figure. Maybe she starts researching more about Lucifer's nature and motives, and this new knowledge somehow influences her magic or her relationships at Hogwarts. For example, she might start to question the nature of good and evil in the wizarding world in a new light, similar to how Lucifer is often a symbol of rebellion against the status quo in his own lore.
One possible plotline could be that Hermione discovers a passion for a particular type of dance, like ballet. She might start taking secret lessons and face challenges from her friends who don't understand her newfound love. As she progresses in her dancing skills, she could enter a local competition and use her intelligence to choreograph a unique routine, impressing everyone and showing that she can excel in something other than academics.
Perhaps the older brother was thought to be dead. But he actually survived and has been living in a far - off magical land. In the fanfiction, his return could be because he sensed that Hermione was in danger. He could have unique magical abilities that are different from Hermione's, like the power to control time in a very specific way. This would add an interesting dynamic to the story as Hermione tries to figure out how to incorporate her brother's abilities with her own knowledge.
It could be Ron. Maybe they had a falling out or some complicated situation that led to Hermione keeping the baby a secret from him.
One possible plotline could be that Hermione discovers a way to time - travel and goes back to Snape's childhood. She decides to raise him in a more positive environment to change his future. Maybe she teaches him about love and friendship from a young age, which alters his personality and his relationship with others at Hogwarts later on.
Well, perhaps in the fanfiction, Sirius would take Hermione on adventures around the wizarding world. Since he was part of the Marauders, he'd know all kinds of hidden places. They could visit ancient magical sites, and along the way, Sirius would share stories about her parents if he knew them. This would not only give Hermione a broader knowledge of the wizarding world but also a sense of connection to her past. Also, he might train her to be a better dueler, preparing her for any threats that come her way in the future.
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.
One possible plotline could be that Naruto, as a girl, has to face different challenges in the ninja world. Maybe she has to deal with more prejudice as a female ninja. For example, some male ninjas might underestimate her at first, but she proves them wrong with her skills.