One popular theme is the relationship between Wednesday and her friends at Nevermore Academy. Writers often explore how she interacts with them in different scenarios that might not be in the original show.
Another theme is mystery - solving. Since Wednesday has a penchant for the macabre and Enid is always up for an adventure, fanfictions often put them in situations where they have to solve a mystery. It could be something related to the school's dark secrets or a strange occurrence in the town.
Friendship is a very popular theme. Fans like to explore how their different personalities, like Wednesday's dark and brooding nature and Enid's more colorful and outgoing self, come together to form a strong bond.
A less common but still interesting trope is the 'swap of powers' or 'shared understanding' trope. Some fanfictions explore what would happen if Wednesday somehow gained a bit of Xavier's psychic powers or vice versa. This leads to a deeper understanding between them and often drives the plot in unique ways as they navigate this new connection.
The 'forbidden love' trope is also quite common. Maybe there are some circumstances in the fanfiction world that make their relationship something that's not allowed, which adds to the drama and tension in the story.
Alternate universes are also quite common. Writers might create a universe where the events of the show happened differently, and the 'watching' aspect could be from a unique perspective in that altered world. Maybe the characters are in a world where they have different powers or face different threats, and the fanfiction delves into how they are perceived by an observer.
A lot of fanfiction delves into the scientific aspects of Godzilla. Given that it's a giant, prehistoric - like creature, there are stories that try to explain its biology, its powers from a scientific perspective. Some might even come up with theories about how Godzilla could co - exist with modern - day ecosystems. Also, the idea of Godzilla as a symbol, either of destruction or hope, is a theme that runs through many fanfictions.
One appropriate theme could be her adventures in solving mysteries. Wednesday has a curious and inquisitive nature, so a fanfiction could focus on her uncovering some strange occurrence in her town or school. For example, she might be investigating a series of odd disappearances or a haunted place.
One popular theme is the clash of cultures. The rather normal world of 'Arrow' and the quirky world of 'His Girl Wednesday' collide, creating interesting scenarios. For instance, the different ways of dealing with problems in both worlds.
One popular theme is the backstories of the characters. Writers often explore what led the characters to be who they are in the game. Another is the relationships between different factions. For example, how the Knights, Vikings, and Samurai interact outside of battles. Also, alternate universes are quite common, like a world where the warring factions have to team up against a greater evil.
One popular theme is character backstories. Fans often like to explore the pasts of the main characters like Kaneki or Touka in more detail than what was shown in the original anime or manga. For example, there might be fanfics about Kaneki's life before he became a ghoul.