In some fanfictions, Sirius Black helps Hermione with her studies. For example, he might share his own experiences with difficult spells and potions, which he learned during his time at Hogwarts. This kind of help can give Hermione new insights and make her even more proficient in magic.
There are some really interesting fanfictions on this concept. One I remember had Hermione growing up with a unique blend of Remus' calm wisdom and Sirius' rebellious spirit. It was fascinating to see how she navigated Hogwarts with that background.
If Hermione was Sirius Black's daughter in fanfiction, it would completely transform her character arc. She would have a different family history to grapple with. The stigma of being a Black might be added to the one of being a muggle - born in the eyes of some. But it could also give her more power and influence within the wizarding world. And Sirius would have a stronger reason to fight against Voldemort, not just for his friends but for his daughter.
There probably is. The Harry Potter fandom is huge and full of diverse ideas. Writers might explore this idea to add new twists to the story, like how Harry's relationship with Sirius would be re - imagined if he were his daughter, and how it would change the overall plot dynamics.
One idea could be that Sirius Black's daughter, who has been hidden away all this time, discovers her true identity while trying to break into Azkaban to clear her father's name. She could have some unique magical abilities that help her in this dangerous quest.
She could be seeking revenge against those who wronged her father. So she goes to Azkaban, using her father's old contacts and knowledge, to find the real culprits. She might be a powerful witch, with skills in Occlumency to protect her mind from the dark influences in Azkaban.
If Hermione was Sirius Black's daughter in fanfiction, her relationship with the Blacks would be full of contradictions. On one hand, the more traditional and dark - leaning Blacks would shun her for her beliefs and actions. On the other hand, she might be able to find allies among those Blacks who were trying to distance themselves from the family's dark reputation. She could be a unifying or a dividing figure within the family, depending on how she chose to interact with them.
In many fanfictions, Sirius Black might protect Hermione from various threats. For example, he could shield her from dark wizards who target her for her intelligence or her connection to Harry. He might also protect her from the more traditional Hogwarts bullies. His protective nature could stem from seeing her as a valuable member of the group around Harry, like a little sister figure.
One great fanfiction where Sirius Black helps Hermione could be 'The Bond of Magic'. In this story, Sirius uses his knowledge of the wizarding world's darker secrets to help Hermione solve a complex mystery at Hogwarts. It shows their relationship evolving as they work together, with Sirius being a mentor - like figure to Hermione.
There's a fanfic called 'Sirius and Hermione's Unbreakable Bond'. It starts with Sirius seeing Hermione's potential from the very beginning. He becomes a mentor to her, which is different from their normal Hogwarts interactions. The story delves deep into how their different experiences in the wizarding world bring them closer. Hermione's intelligence and Sirius' rebellious spirit create a unique dynamic between them.