A common theme is also the exploration of power dynamics. Given Severus' position as a teacher and his knowledge, and Harry being the famous 'Boy Who Lived', when they are thrust together, there are interesting power plays. Sometimes Severus has the upper hand in knowledge and magical ability, but Harry has his own influence and moral standing that can shift the balance in their relationship.
One popular fanfic in this category could be 'The Unlikely Bond'. It explores a unique relationship between Severus and Harry in a rather interesting way. The story focuses on how they gradually come to understand each other better.
One common theme is redemption. Severus has a complex past, and in these fanfics, his relationship with Harry can be a part of his journey towards redemption. Another theme is the exploration of power dynamics, as Harry has his own power and Severus is a powerful wizard too.
One common theme is the exploration of hidden emotions. Since dreams can often reveal what a person truly feels, in these fanfics, it's a way to expose the unacknowledged love or respect between Harry and Severus. For example, Severus might dream of protecting Harry in a way he never would admit to in the waking world.
One common theme is redemption. Severus has a complex past, and in these fanfics, his relationship with Harry often becomes a path for him to find redemption. Another theme is the exploration of the power of love. Their unusual bond challenges the norms of the wizarding world and shows that love can exist in unexpected places.
One common theme is redemption. Severus often has a lot of past wrongs to make up for, and his love for Harry can be seen as a part of his journey towards redemption. For example, in many fics, he has to face his actions against Harry's parents and find a way to be worthy of Harry's love.
Well, there's often the theme of secrecy. In the wizarding world of Harry Potter, secrets are a big deal. When you add vampirism to the mix, Harry and Severus would need to keep that a secret even more. Also, the theme of redemption can be present. Maybe Severus is trying to redeem himself through his vow to Harry who has become a vampire. Or Harry is seeking redemption for some past actions in his new vampire - like state. And of course, the theme of forbidden love can also crop up in these fanfics, as the relationship between Harry and Severus is already complex and adding vampirism can make it even more so.
One common theme is redemption. Snape's actions are often explored in a way that shows his journey towards redemption in Harry's eyes or in the context of the wizarding world.
Power is a common theme. Voldemort desires ultimate power, Severus is often caught in the power struggle between different sides, Lucius wants to regain his family's power, and Harry Potter is the one who stands against Voldemort's tyrannical power.
One common theme is self - discovery. Since Harry is a squib, he has to find his place in a magical world that he doesn't quite fit into in the traditional sense. Another theme is the relationship between Severus and Harry. Severus, as a potion master, might take Harry under his wing or have a complex relationship with him due to his status as a squib. Potions often serve as a medium through which their relationship develops or conflicts arise.
One common theme is redemption. The fanfic might show Snape's father trying to make up for past mistakes. Another theme could be family secrets. His father may have secrets that are gradually revealed and affect Snape's life.