You can start by looking on Archive of Our Own (AO3). It has a large collection of fanfictions, and you can easily search for Stanley x Narrator ones. There are different tags you can use to narrow down your search.
A popular Stanley x Narrator fanfiction is 'The Understanding'. In this one, the writer focuses on the emotional connection between the two. It's beautifully written, with detailed descriptions of their interactions and how they come to understand each other on a deeper level.
One common theme could be adventure. The Narrator guiding Stanley through different, unexpected scenarios in the office that are far from the normal routine. Another might be friendship, as they interact in this unique world created in the game. There could also be a theme of self - discovery for Stanley, with the Narrator's influence.
These fanfics contribute by expanding the lore. They give more depth to the relationship between the Narrator and Stanley, which might not be fully explored in the original game. For example, they can create backstories for their relationship.
The fanfic could also revolve around Rachel Stanley somehow getting transported to the Naruto universe. She might be a bit lost at first, but Naruto takes her under his wing. They could then embark on a journey to find a way to send Rachel back home, all while Naruto teaches her about chakra and ninja skills. Along the way, they form a deep friendship that changes both of them.
One great 'eddievr x narrator fanfiction' story could be the one where they go on an adventure together in a virtual world. It's full of exciting moments as they face challenges and help each other out.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of various fanfictions, and there's a good chance you'll find some great 'eddievr x narrator' ones there.
It could be a rogue ninja from Naruto's world who has some sort of vendetta against Naruto and sees Rachel Stanley as an easy target to get to Naruto. This ninja might have some dark jutsu that he uses to try and stop them from achieving their goals.
The narrator of a novel could be the protagonist of the story, a third party, or a voice-over. In most cases, the narrators were the protagonists of the story because this allowed the readers to be more involved in the plot and better understand the characters and events in the story. However, sometimes there might be a third party or a voice-over to narrate the story. This would make the story more objective and comprehensive, allowing the readers to better understand the background and truth of the entire incident.
Another theme could be alternate universes. Maybe in a different world, they have different roles in the band or their relationship has a different dynamic. Some fanfictions might explore what would happen if they met under different circumstances, like if they were in a different genre of music.