One common trope is the 'loyal sidekick'. Felix is often depicted as the extremely loyal follower to Peter Pan. He will do anything for Pan without question, and this loyalty is often tested in different ways in fanfictions. For example, in some stories, he has to choose between his loyalty to Pan and his own moral compass.
Another trope is the 'power dynamic' between Peter Pan and Felix. Peter Pan is usually in a position of power, but some fanfictions play with this dynamic. They might show Felix having some hidden power or knowledge that could potentially shift the balance between them. This creates tension and suspense in the story.
The 'mysterious past' trope is also popular. Many fanfictions explore Felix's past, trying to figure out what made him the way he is. Maybe he had a difficult life before coming to Neverland, and this past experience shaped his unwavering loyalty to Peter Pan. It adds depth to his character and makes the story more interesting.
There could be a fanfiction where Felix has a secret that he's been hiding from Peter Pan. It could be that he has a connection to a group outside of Neverland that could either help or harm their world. As the story unfolds, Peter Pan discovers this secret and has to decide whether to trust Felix or not. This would add a lot of drama and tension to their relationship.
I'm not sure who the absolute best is, but some popular ones might be those who have a deep understanding of the 'Once Upon a Time' universe. Writers who can really capture the essence of Peter Pan's mischievousness and Felix's loyalty are usually great. For example, there might be an author who has written multiple stories about their friendship and how it evolved over time.
One popular trope is the 'What - If' scenario. For example, what if Wendy had decided to stay in Neverland permanently? Fanfiction writers often explore this idea, imagining how her life would be different and how it would affect the other characters. Another common trope is the 'Power - Up' where a character, like Wendy, might gain new powers or abilities during her time in Neverland. This can lead to new and exciting adventures.
In OUAT (Once Upon a Time) fanfiction, a possessive Peter Pan can add a lot of drama. He is often portrayed as a complex character. His possessiveness might stem from his eternal youth and his fear of losing what he considers 'his', like Neverland or certain characters. It can create intense relationships with other characters in the fanfic world.
You could write a fanfiction where Wendy is actually a spy sent by the good guys in the Once Upon a Time world to infiltrate Peter Pan's group. She has to pretend to fall for him while secretly gathering information. This would add a whole new layer of intrigue and suspense to their relationship.
The Lost Boys are also quite popular. They can be developed further in fanfic, perhaps given individual personalities and backstories that are not fully explored in the original show. Their loyalty to Peter Pan and their life in Neverland offer a lot of creative potential.
I would recommend 'Pan's Shadow'. This fanfiction delves deep into the relationship between Peter Pan and Wendy. It explores the darker aspects of Peter Pan's character that are often hinted at in the show, and Wendy's struggle to understand him. The writing style is very engaging and keeps you hooked from start to finish.
He's often shown as very controlling. For instance, he might control the Lost Boys strictly because of his possessive nature. He sees them as his and wants to keep them in Neverland.
Well, the theme of power is quite common. Peter Pan has a lot of power in the OUAT world, and fanfictions often explore how he uses or misuses it. Also, the theme of identity. Since Peter Pan has such a complex character, many fanfictions dig into who he really is and how he came to be that way. For example, some stories might explore his relationship with Neverland and how that shapes his identity.
The themes of trust and leadership are also quite common. Peter Pan is the leader and Felix trusts him completely. They also face themes of growing up, even though they are in the Neverland world. Sometimes there are elements of magic and mystery, which add to the allure of their relationship. In many fanfictions, they also have to deal with threats to their world or their group, which shows their courage and unity.