The relationship with her foster family might change. They could be more protective of her as a female, or she might have to prove herself in a different way. Her interactions with the villains would also be different. They might target her differently, like using more psychological attacks based on her gender. For example, they might try to make her doubt her abilities as a female superhero.
The character dynamics would be greatly altered. In her daily life as Billie, her friends at school or in the neighborhood would treat her differently. As a female superhero, she might attract different kinds of allies and enemies. Allies could be drawn to her because she represents a new kind of hero, while enemies might see her as an easy target or a threat to the status quo. Also, her internal dialogue about her powers and identity would be different from when she was male. She would have to navigate a world that often has different expectations for females, both as a person and as a superhero.
One possible plot could be that as a female, Billy (let's call her Billie now) discovers new aspects of the Shazam powers. Maybe she has a different approach to using the powers for good in Fawcett City. She might face unique challenges from the villains who are not used to a female Shazam. For example, they might underestimate her at first, but she quickly proves them wrong with her newfound strength and the wisdom of Solomon which she uses in a more empathetic way as a female.
The character dynamics between Billy Batson and Batman in a fanfic could be complex. Billy, as Shazam, has god - like powers, but he's still a kid at heart. Batman, on the other hand, is a human with no superpowers but incredible skills. Batman might be initially skeptical of Billy's power because it's so different from his own. But as they interact more, they could learn from each other. Billy could show Batman the importance of having a positive attitude, and Batman could teach Billy about the responsibility that comes with power.
Dr. Sivana could still be the main antagonist. His hatred for Shazam wouldn't change just because Billy is now female. In fact, he might be even more enraged or intrigued by this new development and try to take advantage of it in some way.
Their relationship might start off a bit rocky. Batman is used to working alone and Billy is a free - spirited kid. But over time, Batman's strict discipline could help Billy focus his powers better. Billy, on the other hand, could show Batman that there's more to life than just fighting crime in the shadows. They'd gradually develop a deep bond of trust and respect for each other.
One idea could be that as Billy turns into a female, she has to deal with different social expectations in Fawcett City. For example, she might find that people treat her differently when she's out as Shazam in her new form.
Billy Batson's powers as Shazam could bring a lot to the Avengers. His super strength, speed, and flight would be great assets. He could also use his wisdom of Solomon in strategic planning. For example, in a battle against a powerful villain like Thanos, his raw power could help in direct combat, while his wisdom could assist in finding the villain's weaknesses.
He might become more confident. Being around other young heroes could help him grow and understand his powers better.
Another place could be FanFiction.net. There are many fans who post their creative works there. However, the quality and content can vary widely. You might have to dig a bit through different categories related to the DC universe to find the specific fanfics about these two characters.
Well, Batman adopting Billy Batson in a fanfiction would likely change both of their lives. Batman, being the brooding and strategic hero, would have to adjust to having a young boy with superpowers around. Billy would get to experience a more disciplined and perhaps darker form of heroics. They might combine their resources, like Batman's gadgets and Billy's magic, to take on threats that neither could handle alone.
Billy Batson is a young and somewhat naive hero. He has a pure heart and believes in the good in people. Constantine, on the other hand, is a cynical and jaded magic user. So, Billy might be eager to jump into a fight to save people, while Constantine would be more cautious, trying to figure out all the angles first. This could lead to arguments, like when Billy wants to rush in to rescue hostages, but Constantine warns that it could be a trap set by a powerful demon.