The idea of hidden heritage is also popular. Hermione might find out she has some connection to Salazar Slytherin, which leads to her exploring her past and her new identity within the wizarding world.
A fanfiction could depict Hermione being magically bound to Salazar Slytherin's spirit. They are forced to work together, and Hermione has to find a way to communicate with him. It would be interesting to see how she reacts to his archaic views and tries to change them while also dealing with the challenges of the magical bond.
There are definitely some out there. For example, in some fanfictions, Hermione might find an ancient artifact that was once Salazar Slytherin's and it unlocks a whole new side of her. It could be that she discovers she has some Slytherin - like traits that she didn't know about before, and the fanfic could then explore how she deals with that in the context of her Gryffindor identity and her relationships with her friends at Hogwarts.
One possible fanfiction could be about Hermione time - traveling back to the time of Salazar Slytherin. She might use her intelligence to understand his motives for creating Slytherin house. Maybe she tries to convince him to be more inclusive in his views, as she is a strong advocate for equality in the wizarding world.
A common plotline involves Hermione unlocking some sort of hidden power or knowledge that was left behind by Salazar Slytherin. For example, she might discover a long - lost spellbook of his and learn some powerful magic from it. Another plotline could be that she is chosen by some ancient Slytherin - related magic to carry out a task that has been long forgotten, which could put her at odds with some of the Hogwarts faculty or her friends initially as they misunderstand her intentions.
I really like 'The Bond Between Hermione and Salazar'. In this fanfic, it explores how Hermione's modern magical knowledge and Salazar's ancient wisdom interact. It's full of exciting magical duels and deep conversations that make it a great read.
One great Salazar and Hermione fanfiction is 'The Time - Traveler's Daughter'. It has an interesting plot where Hermione somehow gets sent back in time and meets Salazar. The story is well - written with great character development.
Perhaps in a parallel universe, the Hogwarts founders had different relationships. Hermione discovers this parallel world where she and Salazar are destined to be together. She has to fight against the norms of both worlds to be with him. This could involve battles against traditional pure - blood ideas in Slytherin's world and modern prejudices in her own world.
Some authors show it as a mentor - student relationship. Salazar, being an ancient and powerful wizard, teaches Hermione about forgotten magics, and Hermione, in turn, shows him how magic has evolved in the modern world. This creates a dynamic where they both learn from each other. In a lot of these stories, their relationship grows gradually as they overcome various challenges together, like fighting against dark wizards who want to misuse the ancient magics that Salazar knew.
One reason could be her thirst for knowledge. Slytherin was known for his cunning and knowledge of magic. Hermione might be drawn to his intellectual side. Another reason could be a desire to break the traditional house rivalries. By becoming a fan of Slytherin, she could promote unity among the houses.