One common theme is the struggle against prejudice. Since Slytherin has a reputation for being the 'evil' house, Harry often has to fight against the preconceived notions of others. For example, in many fanfictions, the Gryffindors are initially suspicious of Harry being in Slytherin.
One unique aspect is the character development. Harry has to adapt to a different set of values and social dynamics. In Slytherin, he might be more cunning and politically aware. For example, he could use his new - found slytherin traits to outwit Voldemort in different ways than in the original story.
In 'Harry is a Slytherin' fanfics, a frequently seen theme is the re - evaluation of Hogwarts houses. Harry's presence in Slytherin makes people question the stereotypes. Family heritage can be a theme too, as Slytherin has a certain reputation related to pure - blood families. Another theme is the forging of new loyalties. Harry has to decide who to trust within Slytherin, which is different from his experiences in Gryffindor. And of course, the theme of personal growth as Harry develops in an environment that is initially foreign to him.
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.
Maybe it's a new Slytherin character created specifically for the fanfiction. This character could be someone who has always admired Harry from afar and decides to take a chance on courting him. They might have different qualities from the typical Slytherins we know in the original books, being more open - minded and brave in their pursuit of Harry.
He might start by promoting fairness and equality within Slytherin. In the original series, Slytherin is often associated with pure - blood supremacy. Harry, as head, could break that stereotype. He could encourage students from all backgrounds to work together and support one another, changing the cut - throat competition within the house to a more collaborative environment.
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.
One great Slytherin - centered fanfiction is 'The Slytherin Heir'. It delves into the life of a Slytherin student who discovers a hidden secret about their family's connection to the Slytherin legacy. The story is filled with complex characters and a plot that keeps you guessing.
Yes, there are quite a few interesting 'Harry is in Slytherin' fanfictions. Some explore how Harry's personality might be different in Slytherin. He could form different friendships and rivalries, like having a closer bond with the pure - blood Slytherins or having a more complex relationship with Draco Malfoy.