Character development is also crucial. As Void Stiles interacts with new characters from the crossover, he may change or they may influence him. And vice versa. In some fanfictions, he might start to show a bit of humanity again because of a particular character he meets.
You can find Stiles crossover fanfiction on websites like Archive of Our Own (AO3). It has a large collection of fanfictions, and you can easily search for Stiles crossover stories using the search bar. Just type in relevant keywords like 'Stiles crossover' and you'll get a list of stories.
Well, 'Stiles and the Doctor' is a really cool Stiles crossover fanfiction. In this, Stiles somehow gets involved with the Doctor from Doctor Who. The way the author plays with the time - traveling and Stiles' character development is quite engaging. There's also 'Stiles in Middle - earth' which is a unique take as it places Stiles in the Lord of the Rings universe, full of adventure and new challenges for him.
One common theme is the clash of different worlds. For example, when Stiles crosses into a different universe like the Vampire Diaries' world, his normal life from the Teen Wolf universe clashes with the supernatural politics and rules of the new world.
There's also 'Void's New Realm'. In this fanfiction, Void Stiles crosses over into a world filled with magic and has to navigate through a whole new set of rules and power dynamics. The story does a great job of exploring how Void Stiles would adapt in such a strange place.
Lydia Martin would also be a good character to include. She's smart and powerful, and her relationship with Stiles could be further explored in the context of the crossover. Her banshee abilities might come in handy when dealing with any new threats in the crossover world.
These crossovers are appealing because it combines two very popular universes. The Avengers have a huge global following, and so does Teen Wolf. Stiles is a beloved character, and seeing him in the context of the Avengers is exciting. It's like a mash - up of different genres. You get the supernatural - mystery elements from Stiles' world and the superhero - save - the - day elements from the Avengers' world. The potential for character development is also great. Stiles can grow in a new environment, and the Avengers can be influenced by his different way of thinking.
You can start by looking on popular fanfiction websites like Archive of Our Own (AO3). Just use the search terms 'fem Stiles crossover' and it'll show you a list of relevant stories. AO3 has a great tagging system that makes it easy to filter through different crossovers.
One common theme is the clash of different worlds. Stiles comes from a world with its own set of rules, and 'Once Upon a Time' has its own magical and fairytale - like rules. So, there's often a theme of adjustment and adaptation. Another theme is the discovery of new powers or abilities. Stiles might find out he has some latent magical abilities in the 'Once Upon a Time' world.
There's 'Stiles and the Winchester Brothers'. This fanfiction crosses over Stiles with the Supernatural world. Stiles' character really stands out as he tries to navigate the world of hunting and the Winchester family's dynamic. It has some really interesting plot twists and great character interactions. For example, his banter with Dean and Sam is both humorous and engaging.