One common theme could be the development of their relationship. Maybe starting from just being acquaintances to becoming close friends or even more. Another might be shared adventures where they face challenges together and their bond grows stronger through that.
I'm not sure specifically which 'parappa x matt' fanfictions are great on Archive of Our Own. But you can start by using the search function on the site, filtering by the relationship tag 'parappa x matt' and then looking at the ones with high ratings and lots of bookmarks.
One plot could be that Parappa and Matt meet in a music competition. They start off as rivals but gradually realize they can learn a lot from each other and end up becoming friends and collaborating on music projects.
Yes, there are likely many non - smut fanfics about Matt and Parappa. Fans often create works that focus on their friendship, adventures, or unique personalities. You can search on fanfic platforms by excluding inappropriate tags to find such stories.
One popular theme is their adventures in their world. They could be on a quest to find a lost item or to save their town from some kind of threat. Also, the theme of self - discovery is often seen, where they figure out more about themselves and their place in their world through their experiences.
There are also matt x matt fanfiction stories that are more comical. They could be about situations like accidentally switching identities or getting into hilarious misunderstandings that only their unique relationship can resolve.
Another way is to join fan communities related to 'matt'. There, you can ask other fans if they know of any great matt x matt fanfiction. They might be able to recommend some hidden gems that you wouldn't find through a simple website search.
One great matt x mello fanfiction is 'The Unlikely Bond'. It beautifully explores their complex relationship. Another is 'Together in the Shadows' which has some really interesting character interactions. And 'A Different Kind of Partnership' is also worth checking out as it delves deep into their personalities and how they might interact in different scenarios.
Fanfiction.net is another place to look. It has been around for a long time and has a lot of fan - created content. However, the tagging system might not be as detailed as AO3, but with a bit of searching, you can still find some great matt x foggy fanfiction.