One idea could be creating an OC who is a hybrid of two different magical creatures in the Owl House universe. This could lead to unique storylines about acceptance and self - discovery.
You could write an OC fanfiction where the OC is a long - lost relative of one of the main characters. For example, an OC as Eda's sister who was separated from her long ago. This would add a lot of emotional depth and backstory to the narrative.
Well, you could write a 'the owl house fanfiction' about a mystery that involves the Owl House itself. Like, there could be a hidden room in the house that no one knows about and Luz discovers it. Or, you could focus on the relationships between characters in a different way. For instance, write about Eda and Lilith's relationship when they were children. Also, a fanfiction where the characters have to face a new and unknown type of magic would be interesting.
One interesting idea could be a crossover with 'Gravity Falls'. The mystery-solving elements of 'Gravity Falls' could blend well with the magical world of 'The Owl House'. For example, Dipper and Mabel could visit the Boiling Isles and help Luz solve some of the island's mysteries. Another idea is a crossover with 'Avatar: The Last Airbender'. Aang could interact with the magic users in 'The Owl House' and exchange knowledge about different forms of magic and bending. Maybe they could even team up to fight a common enemy that threatens both their worlds.
A 'the owl house' crossover with 'Avatar: The Last Airbender' would be cool. Aang's airbending skills and his connection to the spirit world could be explored in the context of the Boiling Isles. Or perhaps a crossover with 'My Little Pony'. The colorful and magical world of ponies could contrast with the darker tones of the Owl House, but also add a touch of whimsy.
Well, one idea could be how Eda's friends support her during the pregnancy. They might help with getting supplies, like magic items for the baby. Another could be Eda's own fears and hopes about becoming a mother, especially considering her wild and free - spirited nature.
Some interesting plot ideas in 'The Owl House' pregnant fanfiction could include a pregnancy that is prophesied in the magical world. The character who is pregnant then has to figure out what this means for her future and the future of the magical realm. Or, a character could be pregnant and the story delves into the cultural differences within the 'The Owl House' universe regarding pregnancy. Maybe in one part of the magical world, pregnancy is seen as a great blessing, while in another it is a cause for concern. This could lead to all sorts of interesting interactions and story developments.
You could create a fanfic where Luz tries to teach her human world hobbies, like anime or skateboarding, to her friends in the Boiling Isles. It would be a fun and light - hearted story about cultural exchange between two very different worlds.
One idea could be a human character from the Human Realm accidentally discovers a portal to the Boiling Isles and has to adapt to the strange new world while also trying to find a way back home. Another could be a story where a group of human friends get caught up in the magic of the Boiling Isles after a spell goes wrong in the Human Realm. Or perhaps a human with latent magical abilities is drawn to the Owl House in the Human Realm and begins to learn about their true powers.
One idea could be a human character accidentally stumbling upon a hidden portal to the Boiling Isles and having to adapt quickly to the strange new world. They could form an unlikely friendship with a witch or demon and learn magic along the way.
One idea could be an OC who is a brilliant but unorthodox medical student. They constantly clash with House in their diagnostic methods yet prove to be surprisingly accurate at times. For example, they might use a new technology or approach that House is initially skeptical about but later comes to respect.
You could make an OC who is a dragon rider from a hidden dragon - riding clan. They enter the story during a time of great conflict, and their bond with their dragon is different from what is seen in the show. Their arrival could change the balance of power and the way people view dragons in the world of House of the Dragon.