One possible fanfic in this vein could be 'Draco's Obsession'. In it, Draco's obsession with Hermione might start from their rivalry at Hogwarts which gradually turns into an all - consuming fixation. This could be due to Hermione's intelligence and her ability to outwit him, making her a constant presence in his mind.
A common trope in these fanfics is the internal struggle Draco goes through. He may be obsessed with Hermione but at the same time, he is aware of the social and family barriers. For example, in some stories, he secretly watches over Hermione, protecting her from other threats in the wizarding world while trying to hide his true feelings from everyone, including her.
There are many such fanfics out there. Some explore how Draco's dark nature, being from a family with Death Eater ties, clashes with his newfound feelings for Hermione. It often leads to a complex web of emotions, as he tries to reconcile his loyalty to his family's ideals with his growing love - like obsession for Hermione.
In some of these fanfics, Hermione is initially oblivious to Draco's obsession. She is so focused on her studies and fighting for the rights of magical creatures that she doesn't notice the dark - haired Slytherin's intense gaze. But as the story progresses, she begins to sense something different about him, which then sets off a chain of events that further explores their relationship.
Another theme is redemption. In many of these fanfictions, Draco's dark obsession is a starting point for his journey towards redemption. He realizes the wrongness of his ways through his feelings for Hermione and tries to become a better person. It's a way to explore the idea of change and growth in a character that was initially portrayed as a bit of a villain in the original series.
There's also 'Manacled' which has received a lot of attention. In this fanfic, the complex relationship between Draco and Hermione is explored in great detail. The author does an excellent job of building up the tension and the story is full of twists and turns that stem from Draco's obsession. It's a long read but definitely worth it.
The Black Phone fanfic often delves deeper into the characters' backstories. It might explore Finney's experiences before being kidnapped in more detail. For example, his relationship with his sister could be further developed, showing how their bond was formed and what it meant to them both. Fanfic writers can also expand on the villain, The Grabber. They might create more of his backstory, like what led him to become such a terrifying figure.
There's also 'Obsession's Price' where Draco's obsession with Hermione takes a turn when they are forced to work together on a secret project. The story is full of tension as Draco struggles with his feelings and Hermione tries to figure out his motives. It's a great read if you like exploring the darker side of their relationship.
One possible fanfic could be titled 'Hermione's Torment: Ron's Bullying'. In this fanfic, it might explore how Ron's jealousy over Hermione's intelligence could lead to bullying. Maybe he makes snide remarks about her in class or tries to exclude her from group activities. It could show Hermione's struggle to deal with this unexpected aggression from someone she considered a friend.
This concept in fanfiction often allows for a new exploration of the magical world. The devil in this context could be a very different entity compared to traditional Christian or other religious concepts. It could be a more magical, other - worldly being. Hermione's heritage could also be linked to a different part of the wizarding world that was previously unknown, like a dark realm that has its own rules and magic.
In such a fanfiction, the author may describe Draco's physical symptoms during the panic attack vividly. For example, his rapid breathing, trembling hands, and the feeling of being trapped. It might also focus on how his friends or even enemies react to his vulnerable state, which can add more depth to the story.
In fanfiction, Draco's panic attack can be a powerful narrative device. It could be triggered by his complex family situation, like the pressure from his Death Eater father. Writers might use it to show his vulnerability, which is a contrast to his usually haughty exterior.
In some fanfictions, Hermione might apologize to Harry for being overbearing. Maybe she realizes she's been too pushy with her studies or her plans, and she says sorry for not considering Harry's feelings more. For example, if she's been forcing him to study for exams when he's clearly stressed about Voldemort. It shows her growth as a character.