There's a fanfiction called 'The Miraculous Origins'. It delves deeper into the backstory of the Miraculous. It explores how the Miraculous were created and how they came to be in the hands of the current holders. It's a long read but worth it for fans who want to know more about the lore of the Miraculous Ladybug Cat Noir universe.
To write a good Miraculous Ladybug Cat Noir fanfiction, you should start with a strong concept. It could be a 'what - if' scenario, like what if Ladybug and Cat Noir's identities were revealed early. Then, build your story around that. Also, pay attention to the relationships between the characters. The friendship and budding romance between Ladybug and Cat Noir are important elements. Don't forget to add some twists and turns to keep the readers interested. Maybe a character they thought was a friend turns out to be working for the villain.
One possible fanfiction could involve Chat Noir being akumatized after a major argument with Ladybug. Maybe he feels constantly overshadowed or unappreciated. The akuma could enhance his negative feelings, making him more aggressive and less in control. His powers might become distorted, and he could start causing chaos in Paris. Ladybug would then have to find a way to reach out to the real Chat Noir inside the akumatized form and purify the akuma.
Definitely Tikki and Plagg. These Kwamis are essential to the Miraculous universe. Their interactions with Cat Noir and Ladybug, as well as their own little quirks and personalities, can make for really fun fanfiction. Additionally, Sabrina, Chloe's sidekick, can be an interesting character to include. She could have her own story of breaking free from Chloe's control or getting involved in the hero - villain drama in some unexpected way.
One common plotline is Ladybug having to take on more responsibility while Chat Noir is injured. She might have to fight akumas alone and also take care of Chat Noir at the same time.
One great Miraculous Ladybug Chat Noir x OC fanfiction is 'The New Hero in Paris'. It has an interesting OC who has unique powers and a great dynamic with Chat Noir. The story is full of action and mystery.
Hawk Moth could still be the main villain. He might target Tom specifically because of his relationship with Marinette (Ladybug). Maybe he thinks that by akumatizing Tom, he can get closer to getting Ladybug and Cat Noir's miraculouses.
Well, there are quite a few. When Cat Noir saves Ladybug from danger in a very heroic way, it shows his deep care for her. Also, their rooftop conversations where they almost open up about their true feelings to each other are really romantic. The times when they look into each other's eyes during battles and seem to have a connection that goes beyond just being superhero partners are also great romantic moments in their story.
One popular 'Miraculous Ladybug x Chat Noir fanfic' story could be those where they reveal their identities early on and have to deal with the new dynamic. Another might be ones that explore their relationship in a different time period, like in the future. There are also fics that focus on their teamwork in really difficult akuma battles.
One interesting idea could be exploring different alternate universes where Ladybug and Chat Noir have different relationships. For example, in some fanfictions, they might have to deal with their identities being revealed in a more complex and emotional way compared to the original show. Another idea is the exploration of their powers in new and unique situations that the show hasn't covered yet.