One plot idea could be that Superboy has to navigate his relationships with different characters in the harem while also dealing with his own identity issues. For example, he might struggle with how his Kryptonian heritage affects his feelings for the other characters.
Another interesting plot could involve the different personalities in the harem clashing. Superboy would then be in the middle, trying to keep the peace. This could show his growth as a character as he learns to handle complex emotional situations and resolve conflicts among his partners.
One plot idea could be Superboy struggling to find his own identity apart from Superman. He might go on a journey to discover his unique powers and what makes him different. For example, he could meet a villain who specifically targets him because of his connection to Superman, forcing him to rely on his own wits and abilities.
Maybe there's a situation where Match is framed for a crime he didn't commit. Superboy, believing in his innocence, sets out to prove it. Along the way, they uncover a conspiracy within the superhero community that's been using clones like Match for their own dark purposes. This would involve a lot of action, mystery, and character development for both of them.
One plot idea could be that Superboy and Zatanna are sent on a mission together to a magical realm. There, they have to combine Superboy's strength and Zatanna's magic to defeat an ancient evil. Another could be a story where Zatanna accidentally casts a spell on Superboy that gives him temporary magical powers, and they have to figure out how to reverse it while also dealing with villains who want to use Superboy's new powers for their own gain. A third idea is that they discover a connection between Kryptonian technology and ancient magic, and they must work together to stop a mad scientist from misusing this knowledge.
Another plot could be a time - travel adventure. Maybe a powerful magic spell goes wrong and sends them back in time. There, they meet younger versions of the Justice League members. They have to figure out how to get back to their own time while also making sure they don't accidentally change the future in a bad way. This would involve a lot of action and also some interesting character interactions as they see the heroes they know in a different light.
Maybe in the fanfiction, the harem members are all from different backgrounds within the Young Justice universe. They are brought together by their feelings for Robin. Some are heroes, some are civilians with special knowledge. Their relationships develop as they help Robin solve a mystery that threatens the entire Young Justice world. This would involve a lot of character exploration and relationship building.
One idea could be a fanfiction where Superboy discovers a new power within himself during a battle against a powerful, unknown enemy. Maybe he can suddenly manipulate energy in a way he never could before.
One interesting Young Justice Superboy fanfiction could be about his struggle to fit in among the heroes. He has his own unique origin and powers, and a story could explore how he overcomes the feeling of being an outsider. Maybe he forms a special bond with another character like Miss Martian, and they help each other grow.
Artemis might also be a part of it. She's a strong and independent character, and her dynamic with Superboy could add an interesting layer to the harem. Their interactions could range from friendly banter to more intense emotional moments.
One idea could be a crossover where the Young Justice team has to team up with the Justice League to face an interdimensional threat. Maybe a powerful villain from another dimension is trying to invade Earth and the combined skills and powers of both groups are needed to stop it.
Maybe a story where some of the younger members of the Young Justice team are frustrated with the Justice League's methods and decide to take on a mission on their own, but end up getting in over their heads and have to call in the League for help. This could lead to a lot of character development and some interesting dynamics between the two groups.