Definitely Miko. She has a very distinct personality. You could write fanfiction that delves into her family life and how it affects her work as a Glitch Tech. Her relationships with other characters like Five and the rest of the team are also rich areas to explore. And don't forget about Haneesh. He's often the comedic relief but also has his own skills. You could create stories where he has to step up and be more than just the funny guy, showing his hidden talents and determination.
Miko is a great character to focus on. She's got a lot of spunk and is always eager to jump into action. Her unique perspective and sometimes reckless nature can lead to interesting storylines. Another good one is Five. His tech - savvy skills and calm demeanor make him a reliable character. You can explore his backstory more or put him in difficult situations where his skills are really put to the test.
In my opinion, Bergy is an underrated character who could shine in a fanfic. He has that nerdy charm and his technical skills could be put to great use in a story. Maybe he discovers a glitch that is related to his area of expertise and he has to take the lead in fixing it. Miko and Five are also obvious choices. Miko's enthusiasm and Five's cool - headedness can create a great dynamic. They could be on a mission to stop a glitch that is spreading across all the arcades in town and along the way, they have to overcome their own personal differences as well as the challenges posed by the glitch.
One idea could be a story where the Glitch Techs discover a new type of glitch that has the power to manipulate time. They have to race against the clock to stop it from causing chaos in the city. Another could be a fanfiction where a Glitch Tech accidentally gets trapped inside a game world and has to find a way to escape while dealing with the game's glitches and enemies. Maybe a story about a new Glitch Tech joining the team who has a unique ability that helps them solve a really difficult glitch problem.
One idea could be a fanfic where the Glitch Techs discover a new type of glitch that has the power to manipulate time. They have to race against the clock to figure out how to stop it before it causes chaos in the digital and real worlds. Another idea is a story that focuses on the personal lives of the Glitch Techs outside of their work, like their relationships with family and friends and how that impacts their performance as Glitch Techs. A third idea could be a fanfic set in an alternate universe where the Glitch Techs are the ones causing the glitches instead of fixing them, and they have to deal with the consequences of their actions.
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.
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.
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.
Most likely, the Tin Man himself would be a main character since it's a 'tin man glitch fanfiction'. He would be at the center of whatever glitch - related story is being told.
The friends of the main couple can also be great to focus on. They can add humor, support, or even create some conflict. For example, a friend who is always teasing the couple about their relationship can be a fun addition to the fanfiction.
Sebastian is a fun character to focus on. You can write about his loyalty to Ariel and how he tries to keep her out of trouble. He could have his own mini - adventures in a fanfiction, like getting lost in the human world while trying to find Ariel. Flounder is another good one. You could show his growth from a timid fish to a more brave friend of Ariel's. Also, Triton, Ariel's father, can be a central character. You can explore his relationship with Ariel in more detail, like his struggle to let her go.
In my opinion, Magnus Bane could be a great character to focus on in Clockwork Angel fanfiction. He has such a flamboyant personality and his magic abilities are quite interesting. He could interact with the main characters in ways that haven't been explored in the original story. Another good character would be Charlotte. As the head of the Institute, she has a lot of responsibilities and secrets that could be delved into. And of course, Tessa. She is the center of the story in many ways, and her character development is something that can be further explored in fanfiction.