One idea could be an OC with a unique power, like the ability to manipulate sound waves. They could join the Outsiders and use their power in unexpected ways during battles, for example, creating sonic illusions to confuse enemies. Another plot could involve an OC who is from a different dimension and has to adapt to the Young Justice Outsiders' world while also bringing some of their own world's knowledge and technology. Or perhaps an OC who has a personal vendetta against a villain that the Outsiders are also after, and they initially clash with the team but then learn to work together.
A great plot for Young Justice Outsiders fanfiction could involve a crossover with another DC team or universe. Maybe the Outsiders accidentally end up in an alternate dimension where they have to team up with unlikely allies to get back home. This would introduce new dynamics and challenges for the characters.
One idea could be that the Outsiders are called in to help the Young Justice team when a new, powerful and mysterious villain emerges. This villain has a unique power that neither team has faced before, forcing them to combine their skills and resources.
One idea could be an OC who is a new kid in town and tries to bridge the gap between the Greasers and the Socs. They might use their unique perspective from a different place to show both groups that they're more alike than they think.
One idea could be an OC with unique powers joining the Young Justice team. For example, an OC who can manipulate time in small increments. This would create interesting scenarios during battles and team strategizing.
One idea could be an OC Green Lantern from a different planet arriving on Earth and having to adjust to the Young Justice team's way of doing things. They might have unique powers related to their home planet's culture that add new elements to the team's battles.
One idea could be that the OC is a new meta - human with a unique power that Batman is initially suspicious of. Maybe the OC's power is related to mind - reading, and they accidentally read Batman's thoughts during a mission, leading to some tense and comical moments as Batman tries to keep his secrets while also using the OC's power to their advantage. Another plot could involve the OC being from a different dimension and Batman has to help them adapt to Earth - 16 (the Young Justice universe) while also dealing with the threat that the OC's arrival may have brought. Or perhaps the OC has a connection to an old enemy of Batman's, and they must work together to uncover the mystery behind it.
One idea could be that the male OC clone discovers he has unique powers not shared by the original he was cloned from. For example, he might be able to manipulate energy in a way that surprises everyone. Another plot could involve the clone trying to find his own identity separate from the expectations placed on him because of his origin. He could struggle with whether to follow in the footsteps of the original or forge his own path.
Another idea is that the OC is a non - magic user who gets caught in a magical conflict that Zatanna is involved in. The OC has to rely on their wits and physical skills while Zatanna uses her magic. Their relationship could grow as they learn from each other's strengths and weaknesses. For example, the OC might teach Zatanna some street - smart tactics, and Zatanna could introduce the OC to the world of magic.
One idea could be to create an OC with a unique power like the ability to manipulate sound waves. The SI (self - insert) aspect could involve the character being from our world and suddenly thrust into the Young Justice universe. They could struggle to adapt to the new rules and powers around them while also trying to find a way to get back home. Maybe they form an unlikely alliance with a less - popular character and together they change the course of events in the story.
One idea could be a villain OC who has the power to manipulate time. They could go back in time to change key events in the Young Justice universe, creating chaos and forcing the heroes to figure out how to reverse the changes. For example, they might prevent the formation of the team in the first place.