One common theme is redemption. Since Slytherin has a bit of a bad reputation in the original series, many fanfictions focus on female Slytherin characters trying to prove that they are not all bad. For example, they might show kindness to those in other houses or use their Slytherin cunning for good.
One common theme is the struggle against the negative stereotypes associated with Slytherin. Female characters often have to prove themselves as not being purely evil just because they are in Slytherin.
In these fanfictions, the theme of legacy is really prominent. Harry being related to Slytherin means inheriting a complex and often controversial legacy. Another theme is friendship. How Harry's relationships with his friends change when this new connection to Slytherin is revealed. And there's also the theme of destiny. Writers often play with the idea that Harry has a new, different destiny because of his link to Salazar Slytherin. It could involve changing the fate of Hogwarts, the wizarding world, or even the balance between good and evil.
Well, in a lot of these fanfictions, a common theme is the clash of cultures. Harry coming from what is seen as a 'good' Gryffindor - type background into Slytherin. There's also the theme of secrecy. Slytherin is often associated with secrecy, and Harry might have to keep certain things about himself hidden. And then there's the theme of transformation. Harry is transformed not only by the Sorting Hat's decision but also by the experiences and relationships he has within the Slytherin house.
One common theme is the struggle between house loyalties. The female Slytherin character often has to decide between her Slytherin roots and her feelings or alliances with Potter. For example, in many stories, she may be pressured by her Slytherin peers to oppose Potter, but her own sense of right and wrong makes her question that.
One common theme is redemption. Slytherins are often seen as the 'bad guys' in the original series, so protecting Harry gives them a chance at redemption. For example, they might be trying to make up for past wrongs or the actions of other Slytherins.
A prevalent theme is redemption. The Slytherin house has a bit of a bad reputation in the original series, so in fanfiction, the female Slytherin girl may be on a journey of self - redemption, and Harry can play a part in that. Also, the theme of self - discovery is common. The girl discovers new things about herself through her interactions with Harry, like her capacity for love and loyalty outside of her house.
One common theme is the exploration of his dark side. Since he was known for his ideas on pure - blood supremacy, many fanfictions delve into his motives and how that ideology developed. Another theme is his relationship with the other founders. Some stories focus on the initial harmony and then the growing rift between them.
Love and jealousy are also common themes. With multiple characters in a harem, there is bound to be love triangles or more complex relationship webs. Jealousy can arise when one character feels that another is getting more attention or has a stronger connection to the central character, leading to interesting plot developments and character growth.
Another theme is self - discovery. When Harry (or the other main character) dates a Slytherin, they often learn new things about themselves. They might realize that they had misjudged Slytherins all along and this makes them re - evaluate their own beliefs and values. It's like a journey of personal growth for both characters involved.
One common theme is redemption. Many Slytherin family fanfictions try to show that the Slytherins are not all bad. They may have made mistakes in the past but are given a chance to make things right. For example, a character might be trying to break free from the dark reputation of their family.