One common theme is the struggle with identity. Harry, being a dark Slytherin wizard, has to grapple with his new self - image that goes against the heroic Gryffindor - like self he was expected to be. Another theme is power. He might be tempted by the power that comes with being a Slytherin and the darker arts.
The themes can be quite diverse. One is the idea of isolation. As a dark Slytherin wizard, Harry may be isolated from his former allies in Gryffindor. Another theme is the discovery of new loyalties within Slytherin. He may find himself having to choose between the old ideals he once held and the new ones in Slytherin. And then there's the theme of the blurred lines between good and evil. In these fanfictions, Harry's actions as a dark Slytherin wizard may make it hard to define what is truly good or bad in the context of the Harry Potter world.
One common theme is power. It explores how Harry, when turning to the dark side, might seek more power and how that power could corrupt him. Another theme is isolation. Usually, as he becomes a dark wizard, he is cut off from his former friends and allies.
Yes, there are some out there. For example, some fanfictions explore Harry being sorted into Slytherin and gradually turning dark due to the influence of the Slytherin house's more negative aspects, like its association with pure - blood supremacy. But these often deviate from the original positive image of Harry in the official series.
Another theme is friendship. Harry forms new friendships in Slytherin that he might not have had in Gryffindor. These friendships often cross the traditional house boundaries and are quite interesting to read about. For example, he might become friends with some of the more complex Slytherin characters who have their own motives and backstories. Also, the theme of self - discovery is prominent. Harry discovers new aspects of his magic and personality as he is in a different house environment.
One major theme is the allure of the dark side. It shows why some wizards might be attracted to dark magic and the lifestyle of a dark wizard. There's also the theme of corruption. Dark magic often corrupts those who use it, and these fanfics explore how that happens. Additionally, the conflict between good and evil is still present, but often with a more nuanced look at the dark wizard's perspective and what drives them to be on the 'dark' side.
Friendship and loyalty are themes that are explored in a new light. In Slytherin, the concept of loyalty can be more complex compared to Gryffindor. Fem Harry may form friendships with those who have different motives, and she has to navigate the fine line between true loyalty and self - interest. These fanfics often show how she builds her own support network within Slytherin.
In these fanfictions, the theme of transformation is quite common. Harry's entire view of himself and the wizarding world can change when he discovers his link to Salazar Slytherin. There's also the theme of mystery. Figuring out the how and why of his connection to Slytherin is often a central part of the story. Additionally, the theme of choice comes into play. Harry has to choose whether to embrace this new identity related to Slytherin or reject it, and how that choice will affect his future and the future of the wizarding world around him.
One common theme is identity struggle. Harry has to reconcile his Gryffindor - like values with the Slytherin reputation. Another theme is friendship. He forms new and unexpected friendships with Slytherin students. And there's often the theme of redemption, where Harry tries to change the negative perception of Slytherin.
One common theme is identity. Harry has to re - evaluate who he is when he's a pureblood Slytherin instead of a Gryffindor. Another theme is acceptance. He has to deal with whether the other houses, especially Gryffindor, will accept him.
One common theme is redemption. The fanfics often try to redeem Salazar Slytherin's reputation through Harry. Since Harry is seen as a good - hearted character, if he has a connection to Slytherin, it can show that Slytherin might not have been all bad. Another theme is the exploration of power. If Harry has Slytherin's power or knowledge, how will he use it? Will he use it for the greater good like he always does, or will it corrupt him in some way?
One common theme is rivalry - turning into friendship. They start as enemies but as they interact more within Slytherin - related situations, they begin to see each other in a new light. Another theme is the exploration of Slytherin house values. Fanfictions often look at how these values affect Harry and Draco's relationship, like ambition and cunning.