A great plotline could involve Superboy and Superman teaming up against a powerful new villain that neither could defeat alone. They would have to learn to work together and trust each other fully. This would show their different fighting styles and how they complement each other. For example, Superman's experience and calmness in battle could balance out Superboy's more impulsive nature.
Perhaps a plotline where Superboy has some sort of identity crisis, and Black Canary is there to guide him. She has experience with mentoring young heroes, and she could help Superboy understand his place in the world, whether he's more human or more Kryptonian, and how to embrace both sides of his heritage.
In Young Justice fanfiction, Superman and Superboy often have complex relationships. Superboy might struggle with living in Superman's shadow. He could be constantly trying to prove himself as a worthy hero, not just a clone. For example, in some stories, Superboy takes on dangerous missions alone to show he's as capable as Superman.
They also interact with the rest of the Young Justice team differently. Superman is seen as this big - time hero, while Superboy is more of the up - and - coming, rough - around - the - edges type. In some fanfics, Superboy's relationship with the team helps him grow into his own hero, separate from Superman's influence.
One interesting plotline could be Robin and Superman teaming up to solve a mystery that involves both Gotham and Metropolis. Maybe a new villain is using technology from Gotham to target Metropolis and only their combined skills can stop it.
Obviously, Superboy and Superman themselves are very popular. They are the main focus in a lot of the fanfiction.
A possible plot is that Superboy discovers a hidden vampire community in his city. The vampires are being hunted by a group of anti - vampire vigilantes. Superboy has to decide whether to side with the vampires or the vigilantes. If he sides with the vampires, he'll have to protect them from the vigilantes who think all vampires are bad. And if he sides with the vigilantes, he'll be going against his own sense of justice because he'll learn that some of the vampires are just trying to live peacefully. Another plot could be a vampire using their powers to manipulate Superboy's mind, but Superboy's strong will eventually breaks free, and then they form an unlikely alliance.
One interesting storyline could be Superboy and Supergirl teaming up to face a new and powerful villain that the Justice League has overlooked. They might discover a hidden threat in Smallville that has ties to Krypton's past.
One interesting fanfiction could be about Superboy and Miss Martian going on a secret mission together. They might face challenges that test their relationship and powers. For example, they could be in a situation where they have to rely on each other's unique abilities to survive.
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.