Supporting characters can also be interesting to focus on. For example, a best friend of one of the main characters who might play a role in either bringing them together or causing misunderstandings. They can add more complexity to the story.
The two lead characters are obvious choices. Their relationship is at the heart of the story, so delving deeper into their personalities, backstories, and how they interact can make for a great fanfiction.
Even minor characters like a kind neighbor or a strict teacher can be given more importance in the fanfiction. Maybe the neighbor witnesses some key moments between the main characters and gives them advice, or the teacher's actions somehow influence the relationship between the two lovers.
The main family members can be great to focus on. Their relationships, power struggles, and dreams offer a lot of material. For example, the patriarch of the family who has to make tough decisions to keep the ranch going. Another good character could be the strong - willed matriarch who holds the family together. Also, the young and rebellious heir who wants to do things his own way.
All of the members of 4 town are great to focus on in different ways. Tae Young, for example, might be the subject of a fanfiction where his amazing dancing skills are the center of the story. Maybe he gets an offer to be in a big dance competition outside of the band, and he has to decide whether to take it or stay loyal to 4 town. Each member brings their own unique traits that can be explored in fanfiction.
Sersi is a great character to focus on. She has a strong connection to humanity and her powers are quite interesting. You could explore her relationships with humans in more detail. Another good one is Ikaris. His loyalty and the internal conflict he might face are good material for a fanfiction. Then there's Kingo, with his love for movies and his unique charm among the Eternals.
Xena herself is obviously a central character. Gabrielle is also often involved, either as a confidante to Xena in her accidental love situation or sometimes even as a potential source of romantic tension if the story takes an interesting turn.
Verne also offers a lot for fanfiction. His cautious and rule - following personality can contrast with RJ's more adventurous side. Stories can be built around how Verne tries to keep RJ in line or how he slowly becomes more daring because of RJ's influence.
I think Otto is a prime character for Time Squad fanfiction. He's young and still learning, so there's a lot of room for character development. You can write about his challenges and how he overcomes them. Buck is another excellent option. His no - nonsense attitude and his knowledge of different time periods can be the basis for many exciting adventures. Sally, too, with her intelligence and ability to handle difficult situations, can be a central character in a great fanfiction.
Kristoff could be a focus too. His life as an ice harvester and his relationship with Sven can add a unique flavor to a fanfiction. Maybe he discovers a hidden ice cave filled with ancient secrets while out on a normal ice - harvesting trip, and he has to decide whether to keep it a secret or share it with the people of Arendelle.
Definitely Naruto and Star Butterfly. Naruto is a powerful and determined ninja, and Star is a magical princess. Their different powers and personalities would create a lot of interesting interactions. For example, Naruto's never - give - up attitude could inspire Star when she faces a tough situation in her own world.
Sakura is an obvious choice. She is the main character, and there are so many aspects of her character that can be explored further in fanfiction. You can write about her growth as a Cardcaptor, her feelings towards her friends and family, and her evolving magical abilities. Another great character is Syaoran. His backstory as a descendant of Clow Reed and his journey from being a rival to Sakura to a close friend and potential love interest offers a lot of material. Tomoyo is also a great character to focus on. Her unwavering support for Sakura and her love for designing costumes can add a unique touch to a fanfiction.
The villains can also be great focuses. In fanfiction, they can be given more backstory, motives, or even a redemption arc that makes them more complex and interesting. For instance, a villain might have a tragic past that led them to their evil ways.