Another option is to ask on social media platforms. For example, on Twitter or Reddit, if you post a request for Greg and Rodrick fanfiction, there are likely fans who can point you in the right direction.
Some Tumblr blogs are dedicated to Diary of a Wimpy Kid fanfiction, including Greg x Rodrick. You can search for relevant tags on Tumblr and might discover some unique and interesting fan - created stories that you won't find on the bigger fanfiction platforms.
Some other platforms like Wattpad might also have 'rodrick x greg fanfic'. However, the quality may vary. You'll need to look through the search results and read the descriptions and reviews to find the good ones.
You can try searching on Archive of Our Own (AO3). It has a large collection of fanfictions across various fandoms, including for Rodrick and Greg. Just use the search function and type in their names along with 'yaoi' to narrow down the results.
One popular Greg x Rodrick fanfiction might be 'The Unexpected Bond'. It explores their relationship in a new and interesting way, showing how they might grow closer over shared experiences like a crazy family road trip.
In the fanfiction, their relationship might start with Rodrick teasing Greg as usual. But then, an event like Greg getting into trouble at school and Rodrick being the only one who can help him out changes things. Rodrick realizes he has a responsibility towards his younger brother. This makes Greg see Rodrick in a new light, and they start to become closer.
There could be a fanfiction where Greg and Rodrick form a band together. Rodrick is the experienced drummer and Greg tries to learn an instrument to contribute. They face challenges like finding gigs and dealing with rival bands, which makes for an exciting story.
Well, there's 'Greg and Rodrick's Adventure'. In this fanfic, they go on an unexpected journey together that forces them to rely on each other. It has some really great character development for both of them. And also, 'The Brotherly Connection' which focuses on the deeper emotional connection that can exist between them.
Well, there's a fanfiction called 'Greg's Hidden World' where the author explores the relationship between Rodrick and Greg in a more mysterious way. The story has a lot of twists and turns that keep you hooked. There's also 'The Lemon - Tinted Days' which is known for its vivid descriptions and how it portrays the two characters' interactions in a new light.
There may also be themes related to personal growth. Through their relationship, both Rodrick and Greg could grow as individuals. Greg might become more confident, while Rodrick could become more understanding. These fanfictions can use their relationship as a catalyst for character development.
Another option is to check out Tumblr. There are often fanfiction writers who post their works or recommend others' works related to 'greg x pearl' on there. You can search for relevant tags or follow blogs that focus on this pairing.