Another theme is Logan's family and how it affects him. His wealthy and complex family background can add a lot of drama to the stories. Some fanfictions might focus on his struggle to break free from family expectations or how his family influences his decisions in relationships.
One popular Logan Huntzberger OC fanfiction might be those that explore his relationship with the original characters in a new light. For example, an OC who is a journalist intern at the same place as Rory could lead to interesting interactions with Logan. They might start as rivals in the newsroom, but gradually develop feelings for each other.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions from various fandoms, including those related to Logan Huntzberger. Just search for his name in the search bar, and you'll likely find a lot of interesting stories.
First, develop your OC. Decide on their personality traits, like if they're shy or outgoing, and their backstory. Then, think about how they would interact with Logan. For example, if your OC is a bookworm, they might bond with Logan over their shared love of literature. Also, consider the setting. Will it be in the familiar Stars Hollow or in a big city?