One common plotline is about Luka helping Marinette deal with her feelings for Adrien. He becomes her confidant and through that process, they start to develop deeper feelings for each other.
Another plotline could be a what - if scenario where Marinette chooses Luka over Adrien from the start. This can lead to a whole different set of adventures and relationship developments in the Miraculous Ladybug universe. For example, how would their relationship affect the battles against Hawkmoth? And how would the other characters react to this new pairing? It can explore different dynamics compared to the main storyline in the show.
There's also 'The Luka - Marinette Connection'. In this fanfiction, the connection between Luka and Marinette is explored on a deeper level. It starts with Luka noticing Marinette's little quirks and how she tries to hide her feelings. As the story progresses, they start to open up to each other more. The author creates a really engaging story by adding in some mystery elements related to the Miraculous and how it might affect their relationship.
There are many interesting fanfictions about Marinette and Luka. Some might focus on their relationship development outside of the superhero chaos. For example, a fanfiction could explore how they go on a simple date, sharing their interests like Marinette's fashion design and Luka's music.
One common theme is the exploration of their unrequited love. In the show, Marinette has a crush on Adrien, but in fanfictions with Luka, she may start to realize her feelings for him. Another theme is the power of music. Since Luka is associated with music, it often plays a role in bringing them closer, like Luka writing a song for Marinette.
In Miraculous Ladybug fanfiction, Marinette and Luka often have a very sweet relationship. Luka is shown as a supportive character. He is someone who can sense Marinette's emotions quite well. In many fanfictions, he becomes a source of comfort for Marinette, especially when she is stressed about her superhero duties as Ladybug or her regular life problems like school and friendships.
One common theme is the exploration of unrequited love. Sometimes Marinette is still pining for Adrien while Luka is there loving her silently. Another theme is the power of music in their relationship, as Luka is a musician. It often serves as a bond between them.
A common plotline is Marinette's hair being down as a sign of a transformation in her character. For example, she might let her hair down when she decides to be more assertive or when she's finally coming to terms with her feelings for Adrien. It shows a more vulnerable and yet confident side of her.
One possible plotline could be that Marinette's best friend reveals her secret identity to someone she shouldn't. This would make Marinette feel extremely betrayed as her identity is crucial in the Miraculous world. Another could be that the people she thought were on her side in the fight against Hawk Moth turn against her due to false accusations. For example, if someone spreads the rumor that Marinette is working with Hawk Moth, her allies might start to doubt her and treat her coldly, which is a huge betrayal.
Fanfiction.net is also a great place. There are many talented writers who post their Miraculous Ladybug fanfictions there. To find the Luka and Marinette ones, you might have to use the search function and filter through the results a bit, but it's worth it as there are some really interesting stories.
You can try websites like Archive of Our Own (AO3) or FanFiction.net. These platforms have a large collection of fanfictions on various topics, including Marinette and Luka from Miraculous Ladybug.
In some fanfictions, Marinette might fight against an alternate version of herself. This could be a version that has been corrupted or turned evil. It would be a really intense battle as she has to face someone with the same skills and knowledge as her. She'd have to dig deep and find the strength within herself to overcome this internal conflict.