Fanfiction.net is also a good place to look. It's been around for a long time and has a wide range of fan - created content. Just use the search function and type in 'fanboy x kyle fanfic' to see what comes up.
There's also 'Fanboy and Kyle's Great Adventure'. In this fic, they embark on a journey to save their town from a mysterious threat. It shows their growth as characters as they face challenges and rely on each other. They learn about teamwork and loyalty throughout the story.
One idea could be that they go on an adventure together in a mysterious land. Maybe they find a hidden treasure and have to face various challenges along the way, like tricky puzzles and dangerous creatures.
You can start by writing a short introduction about who Fanboy and Kyle are in your fanfiction. Maybe describe their personalities a bit more in - depth than in the original source. For instance, if Fanboy loves superheroes, you could write about his favorite superhero and why. Then, introduce the situation that gets the story going, like a new student arriving at school who seems a bit strange and they both want to figure out what's up with that person.
One common theme could be friendship evolving into something more. Since Kyle and Heidi might start off as friends in the original context, fanfics often explore how that relationship deepens romantically.
Friendship is a very common theme. Since Kyle and Stan are friends in the original show, many fanfics explore how their friendship can grow and change. They might face challenges together and come out stronger.
Growth is also a theme. Fanfics might show how Kenny and Kyle grow as individuals while also growing in their relationship with each other. They could learn new things about themselves and each other as the story progresses.
Another common theme is personal growth. The fanfics might show how Eric and Kyle learn from each other and become better versions of themselves. They could influence each other's attitudes towards things like school, family, or their own self - esteem.
One common theme could be friendship evolving into something more. Since they might start as friends in the original context, fanfic writers often explore the idea of their relationship deepening romantically.
One common theme is friendship. Despite their differences in the show, in fanfics, they might explore a deeper, more complex friendship. Another theme could be rivalry, but in a different context, like a friendly competition that turns into something more.