There are indeed. Fanfiction writers often come up with creative stories involving the wolf miraculous in the Miraculous Ladybug world. They might explore how a new holder of the wolf miraculous interacts with Ladybug and Chat Noir. It could be about a character who discovers the power of the wolf miraculous and has to learn how to use it to fight against Hawk Moth's akumas. You can also check fanfiction.net for some interesting reads.
Common themes include identity. The character with the wolf miraculous often has to keep their identity a secret, just like Ladybug and Chat Noir. Also, there's the theme of discovery. The discovery of the wolf miraculous, its powers, and how it fits into the overall Miraculous Ladybug lore. There are also fanfictions that focus on the relationship between the wolf miraculous holder and other characters in the show, whether it's a friendship or a rivalry.
Maybe the Wolf Kwami has a special power that is different from the other Kwamis. A new villain wants to steal this power for their own evil plans. The story could focus on Ladybug and Chat Noir protecting the Wolf Kwami and its power. This would involve a lot of action and adventure scenes.
Most wolf OCs tend to have a sense of loyalty, which is a typical trait of wolves in general. In the fanfictions, this loyalty might be towards a particular character or towards the cause of protecting Paris. They also often have a connection to nature. They might be more in tune with the natural world around them, which could give them an edge in battles or in solving problems. Some wolf OCs are also depicted as being a bit of a lone wolf at first, but then gradually form bonds with the other characters in the Miraculous Ladybug universe. This adds an interesting dynamic to the story as they learn to work with others and trust them.
First, know the Miraculous Ladybug universe well. Understand the existing characters, their relationships, and the rules of the Miraculous. For the Wolf Kwami, think about what kind of powers it might have. Then, create an interesting plot. It could be a story of the Wolf Kwami's origin or how it affects the main characters in a new situation.
In an akumatized Ladybug fanfiction, the akuma might enhance her powers in unexpected ways. For example, her Lucky Charm could become a more powerful and unpredictable object. Her akumatized form might also have a darker and more menacing look, perhaps with a more aggressive fighting style. Writers could explore how the heroes and villains interact with this changed Ladybug.
One popular Miraculous Ladybug wolf OC fanfiction is 'The Wolf Among the Miraculous'. It has an interesting plot where the wolf OC has unique powers and gets involved in the battles against Hawkmoth. Another great one could be 'Wolf's Miraculous Adventure' which focuses on the wolf OC's journey to discover its true place in the Miraculous world.
In this 'Miraculous Ladybug Criminal Ladybug Fanfiction', there could be a lot of potential storylines. One possibility is that an external force is influencing Ladybug to commit crimes. It could be a new villain who has found a way to manipulate the Miraculous. This would create a great conflict as Ladybug has always been the symbol of good. Her friends and allies would be in shock and would have to find a way to stop her without hurting her. The story could also explore her internal struggle, as she might be aware of what she's doing but unable to stop herself.