Well, it could be that Batman sees Spiderman as a young hero in need of proper guidance. He might train Spiderman in more stealthy combat techniques, as Batman is known for his stealth. And he could also introduce Spiderman to his high - tech gadgets and resources, which would enhance Spiderman's crime - fighting abilities.
Perhaps Batman adopts Spiderman after seeing his potential but also his recklessness. Batman would then instill in him a sense of discipline. He would teach Spiderman how to analyze crime scenes more thoroughly, like he does in Gotham. Spiderman, in turn, could show Batman a bit more about his acrobatic style of fighting and web - slinging tricks.
At first, it might be a bit rocky. Spiderman is used to his own way of doing things, and Batman has very strict rules. But over time, they would start to respect each other. Spiderman would learn from Batman's detective skills, and Batman would come to appreciate Spiderman's agility and quick thinking.
Well, perhaps Batman sees Superboy as a lost and powerful youth in need of guidance. He could take Superboy under his wing to teach him how to control his powers better and use them for good. Maybe they start by training in the Batcave, with Batman showing Superboy his high - tech gadgets and combat techniques.
One possible plot could be that Batman and Spider - Man both find themselves in Gotham City dealing with a new super - villain who has the ability to create illusions. Batman uses his detective skills to try and figure out the villain's true identity while Spider - Man uses his agility and spider - sense to fight the minions. They initially clash due to their different methods but then realize they need to work together to stop the big bad.
One possible plot is that Spiderman gets involved in a case that is related to Gotham's underworld. Bruce, seeing Spiderman's potential and also his naivete in some aspects, decides to adopt him and guide him through the complex world of super - heroics. Along the way, they face common enemies and learn from each other.
Well, the plot could involve Catwoman finding a young Spiderman fan who is in a tough situation. Maybe the kid is an orphan or being bullied. Catwoman, with her complex character, decides to take the kid under her wing. She could teach the kid some of her skills, like stealth and acrobatics. And the kid, being a Spiderman fan, would constantly try to incorporate Spiderman - like values of responsibility and helping others. It could be a really interesting story of an unlikely mentorship and how the two grow together.
In the fanfiction, Batman might adopt the little girl because she shows extraordinary intelligence or a unique ability. For example, she could be a tech prodigy. This would attract Batman as he always looks for ways to enhance his crime - fighting capabilities. He would then have to balance his role as a father figure with his duties as Batman, which could lead to some interesting internal and external conflicts.
One possible plot could be that a new super - villain emerges who has the ability to manipulate time and space. This brings the universes of Spiderman and Batman together. Spiderman's agility and sense of humor contrast with Batman's brooding and detective skills as they team up to stop the villain from collapsing both their worlds.
A great plot could involve a race against time. A powerful new super - weapon is about to be unleashed in Gotham and New York simultaneously. Spiderman and Batman have to put aside their differences and work together to stop it. Along the way, they learn from each other's fighting styles and detective skills.
Obviously, Batman and Jason are the main characters. Batman is the mentor and adoptive father figure, while Jason is the young boy who is being taken under Batman's care.
One possible storyline could be that Batman sees the potential in Shazam, who is still a bit of a naive hero. Batman takes him under his wing to teach him the more strategic and stealthy aspects of crime - fighting. For example, Shazam might be used to just using his superpowers to barge into situations, but Batman could show him how to gather intel first.