Well, a great crossover in fanfiction might be Blue Beetle getting caught in Gotham and Batman initially being suspicious of this new hero. But then they realize they share a common goal of justice. They could combine their unique gadgets, Blue Beetle's alien tech and Batman's Bat - gadgets, to take on a powerful criminal organization that operates in both their cities.
One interesting crossover could be Blue Beetle seeking Batman's guidance on how to better protect his city. Batman, with his years of experience, could offer strategic advice to Blue Beetle. Another could be them teaming up against a common enemy like Ra's al Ghul. Ra's has complex plans that would require both their skills to stop.
Another idea is a time - travel fanfiction. Blue Beetle and Black Beetle could be sent back in time to a crucial moment in their predecessors' lives. They then have to make sure not to disrupt the timeline while also trying to gain some knowledge or power that can help them in their present - day battles. This would allow for exploration of their origins and how they've evolved over time.
There are Blue Beetle fanfictions that focus on his training. It could show how he hones his skills under different mentors or in unique training environments. One might be set in a virtual reality where he has to face his worst fears in order to become stronger. Another type of fanfiction could be a crossover. For instance, Blue Beetle teams up with the Teen Titans. In this story, he has to adjust to their team dynamics while also contributing his own unique abilities to fight a common enemy.
One interesting crossover could be Batman teaming up with Wolverine. Their different fighting styles, Wolverine's brute strength and healing factor along with Batman's gadgets and strategic mind, would make for an exciting story.
One interesting crossover could be Ben using his alien forms to help Batman fight Gotham's villains in a more unique way. For example, Heatblast could be used to deal with Mr. Freeze in a direct heat - based battle.
One interesting crossover could be a story where Daredevil and Batman team up to take on a common enemy like the Joker and Bullseye working together. They would bring their unique skillsets. Daredevil's enhanced senses could help in detecting hidden threats, while Batman's gadgets and detective skills would be crucial in uncovering the villains' plans.
One interesting crossover could be a story where Spawn and Batman team up to take on a common enemy like a powerful and corrupt crime syndicate that has connections in both Gotham and Spawn's city. They would have to overcome their differences in methods, with Batman relying on his detective skills and non - lethal gadgets, while Spawn uses his more brutal and supernatural powers.
Another interesting crossover could be with the Green Lantern Corps. The Blue Beetle's alien technology - based powers could interact in fascinating ways with the power rings of the Green Lanterns. For example, they could have to combine their powers to stop an intergalactic threat that is immune to normal Lantern constructs.
One interesting crossover could be in a courtroom setting. Imagine Phoenix Wright from Ace Attorney defending Batman in a Gotham court. Batman's rogues' gallery could be witnesses, and Phoenix would have to use his legal skills to prove Batman's actions were just. Another crossover could involve the investigation aspect. Batman's detective skills combined with the Ace Attorney's unique way of uncovering evidence would make for an exciting story. For example, they could be investigating a crime that has ties to both Gotham and the Ace Attorney universe, like a new villain using legal loopholes to commit crimes.
One interesting crossover could be Batman finding himself in the One Piece world. He might be initially confused by the Devil Fruits and the strange sea creatures. Maybe he teams up with Luffy to take on a common enemy who has both high - tech weapons like in Gotham and the strange powers of the One Piece world. Another could be Robin or Nami being interested in Batman's gadgets and trying to reverse - engineer them.
A possible crossover in fanfiction could involve Wednesday Addams becoming an apprentice of Batman. She has her own sense of justice and a no - nonsense attitude. Batman could train her in his ways, but she would also bring her own Addams Family charm to the Batcave. She might decorate it in a more gothic and spooky way, and her dark humor could lighten up the often - brooding atmosphere in Batman's world. This could lead to some really fun and unique adventures as they fight crime together in Gotham.