Dumbledore could also be seen as a kind of surrogate family figure. He is very much like a father figure in the wizarding world, always looking out for the students. Given Hermione's intelligence and potential, Dumbledore might take her under his wing even more so in this situation.
Harry and Ron could become her surrogate family. They are her closest friends, and in the absence of her real family, they would likely step up. They already share so many experiences together, and this could deepen their bond to a family - like level.
This abandonment could make Hermione more independent. She might have to learn to fend for herself earlier, relying less on others for emotional support. It could also make her more distrustful at first, but as she grows, she might learn to open up again through the friendships she forms, like with Harry and Ron.
Top-grade Demon Tamer.
I recommend "Ru Niang". The female protagonist of this classical fictional novel is Zeng Wanqing. She is also one of the orphans abandoned by her parents. In this novel, she experienced hardships, relied on her own intelligence and courage, and relied on martial arts, medicine, food, and strategy to watch life with a smile. I hope you like this fairy's recommendation. Muah ~😗
One interesting aspect of Hermione Granger and her parents in fanfiction could be exploring how their Muggle background affects Hermione's Hogwarts experience. In some fanfictions, her parents might be more involved in the wizarding world than in the original series, which adds a new dimension to Hermione's story.
Obviously, Hermione herself is the central character. Harry and Ron are great additions as they are her closest friends and would surely be there to support her in the journey of finding and reconnecting with her parents.
One great Hermione and her parents fanfiction is 'The Granger Family Reunion'. It beautifully explores the relationship between Hermione and her parents in a post - war scenario. The story delves deep into how they cope with the changes in Hermione's life due to her experiences at Hogwarts. Another interesting one is 'Hermione's Muggle Roots', which focuses on how Hermione's parents influenced her values and her journey in the wizarding world.
Her parents, of course. They would be an important part of the story as they react to the news. They might be shocked at first but then supportive.
Professor Snape might also be involved. Despite his usual strictness with Hermione, he is a potions master. He could see this as an opportunity to teach her a lesson about being more careful, but also help her because he wouldn't want a student to be in real danger from a botched potion. And there's always the possibility that Dumbledore, with his vast wisdom and knowledge of magic, could offer some cryptic advice that ultimately helps Hermione solve the problem caused by the accident.
She might meet her old teachers. They would be surprised to see how much she's grown and changed. And of course, her former classmates. There could be the popular girl from school who is now a bit jealous of Hermione's confidence. Or the nerdy boy who has now become a successful scientist and they can have an interesting exchange about different kinds of knowledge, magical and Muggle.
Dumbledore could also be an ally. He is very knowledgeable and might give Hermione some advice or information about the vanishing cabinet that she needs to successfully sabotage it. He might also provide some protection if there are any risks associated with her actions.