One interesting story could be about the unique characters and their struggles in the chaos. Maybe a story that focuses on how they adapt to the strange environment they are in.
You could write a fanfiction where the setting of Chaos Walking is changed slightly. Instead of the usual post - apocalyptic world, it could be set in a parallel universe where the Noise is a positive thing that helps people communicate better rather than causing chaos. Or you could focus on a relationship in the story, like developing a romantic subplot between two characters who were just friends in the original.
First, re - read the original Chaos Walking books or re - watch the movie if you've seen it. This will help you get a better feel for the world, the characters, and the rules of the Noise. Then, pick an aspect you want to focus on, like a character or a plot point. After that, just start writing. Don't worry too much about making it perfect at first.
In many 'Chaos Walking' fanfics about Davy and Todd, their relationship is often complex. It could be a relationship filled with conflict at first, as Davy represents the oppressive side in the story's context while Todd is the one striving for freedom. But some fanfics might explore a deeper understanding between them, perhaps a grudging respect that develops over time.
One idea could be exploring the backstory of a minor character in the 'chaos walking' universe. For example, a sidekick who has some hidden powers or a past connection to the main antagonist. Another plot could be a time - travel scenario where a character goes back in time to change a crucial event in the 'chaos walking' story, which then has a ripple effect on the entire world. Maybe also a plot where the characters find a new planet that has a completely different form of the 'noise' and they have to adapt to it.
Todd Hewitt is an obvious choice. He's the main character in the original story, so there's a lot of room to expand on his character, his relationships, and his journey. Viola Eade is also great. You could explore her experiences more deeply, especially her interactions with Todd and how she adapts to the new world she finds herself in. Another good character is Mayor Prentiss. He has a complex personality, and writing about his backstory or what could have happened to him after the events of the original story can be really interesting.
In 'Chaos Walking' Davy x Todd fanfics, there are several recurring themes. Trust is a big one. Given their initial differences and the fact that they seem to be on opposite sides in the original story, fanfics often play with the idea of whether they can trust each other. It can start from a place of complete distrust and gradually build up. Another theme is the idea of breaking free from the constraints of their world. Davy, who has been somewhat trapped in the power - hungry system, and Todd, who is fighting against it, can come together in fanfics to break free in ways that might not be possible in the original story. This theme gives a sense of hope and freedom to the stories.
There are various main characters. Some are the tough survivors who have been through a lot, like Rick. He is often a central figure in many stories, using his leadership skills to keep the group alive. Another could be Michonne, a fierce fighter with her katana, who brings a sense of security to the group.