Another theme is 'mentorship'. Peter could be seen as a more experienced werewolf mentoring Stiles, who has his own unique abilities. This can lead to a lot of character growth and interesting interactions between them.
Some Tumblr blogs are dedicated to Teen Wolf fanfic sharing. You can search for relevant tags like '#peter hale x stiles fanfic' on Tumblr. There are often communities that recommend and share great fan works.
There's a fanfic called 'Unexpected Allies'. In this story, Stiles and Peter are forced to work together in a dangerous situation. It delves deep into their personalities and how they start to understand each other on a different level. Their interactions are really interesting to read about.
Well, it's a rather specific kind of fanfiction. I haven't come across one with that exact plot myself. But if you're into Teen Wolf fanfiction, you could join some Teen Wolf fanfiction communities or forums. There, you can ask fellow fans if they know of any such stories. They might be able to point you in the right direction.
The contrast between their characters. Stiles is young, impulsive and full of heart, while Peter is older, more calculating. Their interactions can be really intense and full of chemistry.
Some powerful and evil supernatural creatures could also be antagonists. For example, a powerful dark witch who wants to use Peter and Stiles for some dark ritual. She might try to manipulate them or put them in dangerous situations to achieve her goals.
One common trope is the 'unlikely alliance'. Given Peter's often - untrustworthy nature and Stiles' wariness, stories often start with them being forced to work together. Another is the 'protective Peter' trope, where Peter feels a need to protect Stiles for some reason. It could be because he sees Stiles' value to the pack or something more personal.
One thing that makes a great Stiles x Peter fanfic is the writing style. A vivid and engaging writing style can bring the story to life. The dialogue should be natural, as if it could be something the characters would actually say. The fanfic should also be able to create an emotional connection with the reader, whether it's through humor, drama, or a combination of both. And of course, a bit of mystery or suspense can keep the reader hooked, like an unknown threat that they have to face together.
One common theme is the power of friendship. They often start from a place of mistrust or misunderstanding and gradually become friends or more. Another theme is the idea of redemption, especially for Peter.
A more emotional storyline could be about Peter and Stiles forming an unlikely friendship. Stiles, who has always been a bit wary of Peter, gradually comes to understand him better and they develop a bond that helps both of them heal from their past traumas.