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.
Fanfiction.net is also a good place to look for 'eric x kyle fanfiction'. There are many different categories and you can filter through them to find the ones that suit your taste. Some authors might also post their 'eric x kyle' stories on their personal blogs or Tumblr pages, so it's worth checking those out too. Keep in mind that when searching on different platforms, make sure to respect the rules and regulations of each site.
There's a fanfic called 'Cartman and Kyle: A New Understanding'. It starts with their typical rivalry but then delves into how they start to see each other in a different light. It's quite engaging as it shows their relationship evolving in a very unexpected way. It also has some really funny moments that are true to the South Park style.
Another theme is the exploration of their personalities. How Cartman's often self - centered and mean - spirited nature can be changed or at least influenced by Kyle's more moral and kind - hearted character. And vice versa, how Kyle deals with Cartman's antics on a more personal level.
There's also 'Eric and Kyle's Adventure'. This fanfic takes the two on an exciting journey where they face various challenges together and in the process, their relationship grows. It's full of interesting plot twists.
One great 'eric x kyle fanfiction' is 'The Adventure of Eric and Kyle'. It has an interesting plot where they go on a journey together. Another one could be 'Eric and Kyle's Friendship', which focuses on the deepening of their relationship in a really heartwarming way.
One common theme could be friendship. They might explore how Shell and Eric became friends and the adventures they have together. For example, they could be on a quest in a fantasy world and their friendship is tested along the way.
One good one to start with could be 'The Unlikely Bond'. It really delves into the unique friendship between Kyle and Kenny and how it could potentially develop into something more. It has great character development and a really engaging plot that keeps you hooked from the start.
You can try fanfiction platforms like Archive of Our Own (AO3). It has a large collection of various fanfictions, and you might be able to find some great Shell x Eric ones by simply using the search bar. Just type in 'Shell x Eric' and browse through the results.