Yes, there might be some. The Harry Potter fandom is quite large and diverse, so there could be fanfictions exploring such darker or complex themes within the Potter family. However, this goes against the general perception of James Potter as a heroic figure in the original series.
Well, perhaps in the fanfiction, James Potter's sister has a special gift or ability that James is envious of. This envy turns into bullying as he tries to undermine her confidence in using that gift. For example, if she's really good at Potions and James isn't, he might try to sabotage her Potions experiments. Eventually, his sister could find some allies who help her stand up to James, and through a series of events, James has to face the consequences of his actions and learn to accept his sister for who she is.
She might be a bit intimidated by them at first. Since James' friends are known for their mischief and popularity. But as time goes on, she could become friends with them too. For example, Sirius might take her under his wing like a little sister as well, teaching her some of his prank - pulling tricks.
One common theme is family. Since she's James Potter's sister, there's often exploration of her relationship with James, their parents, and the rest of the family. Another theme is identity. She has to figure out who she is within the shadow of her famous brother. For example, in some fanfics, she might struggle to find her own place in Hogwarts or in the wizarding world in general.
Yes, it can be a somewhat common theme. In fanfiction, writers often explore different dynamics within the Potter family. Since James was shown to be a bit of a troublemaker in his youth, some writers might imagine a scenario where he bullies Albus, perhaps out of jealousy or just his old prankster ways resurfacing. It adds an interesting layer of family drama to the stories.
One way it could be developed is that his sister might be jealous of Naruto's growing popularity or skills. Maybe she feels overshadowed and starts to bully him by spreading false rumors about him in the village. This could lead to Naruto feeling more isolated and misunderstood, even as he tries to prove himself.
Well, it could make James more protective of his remaining family and friends. He might become more serious and less carefree, as the loss of a sister is a huge blow. It could also fuel his determination to fight against whatever forces caused her death, like in the wizarding world, it might be dark wizards or some sort of magical curse.
One common theme is family. Since she's James Potter's sister, her relationship with her family, especially James, is often explored. It could be about how they support each other or have sibling rivalries. Another theme is identity. She has to figure out who she is in the shadow of her famous brother. For instance, in some fanfictions, she tries to make a name for herself independent of the Potter name.
Friendship is also a big theme. She forms her own group of friends at Hogwarts and these relationships help shape her character. In some fanfictions, there's a theme of rivalry too. Not in a negative way always, but a friendly rivalry with James or other students in terms of magical achievements. These themes all come together to create an interesting and complex story.
One popular 'James Potter's Slytherin sister fanfiction' is 'The Slytherin Potter'. It explores the unique dynamic of having a Potter in Slytherin, with interesting plotlines about her relationships within the house and with her Gryffindor brother. Another great one could be 'Slytherin Secrets of the Potter Girl' which delves into her hidden powers and how she uses them in the Slytherin environment.