Obviously, Alfred is a key ally. He has all that knowledge about Batman's operations and can be a great support to the reborn character. Commissioner Gordon is also an important one. His connection to the police force can be very useful for the reborn Batman in fighting crime.
Kakashi could also be a great addition. As a mentor figure, he could guide Sakura in understanding and controlling her newfound powers from her rebirth. And then there are the villains. Orochimaru could be interested in Sakura's rebirth if he senses some new and powerful chakra within her. He might try to capture her for his own experiments.
I'm not sure which specific 'Brody Malone story' you are referring to. There could be many people named Brody Malone. He could be an athlete, an artist, or just an ordinary person with his own unique story. Can you be more specific?
Obviously Naruto would be the main character since it's about him being reborn as a Pokemon fan. His Pokemon partners could also be considered main characters. For example, a Pikachu that he befriends early on and they go on adventures together.
There could be new Suna shinobi that Naruto befriends. For example, a young and talented sand ninja who has a unique jutsu related to the desert environment, like being able to manipulate sandstorms on a small scale. Another potential character could be an elder in Suna who has a lot of knowledge about the village's history and secrets, and who helps Naruto understand his new role in Suna.
Green Lanterns could be allies. Their power rings and their experience in dealing with cosmic threats would be valuable for a celestial. They could teach the celestial about different sectors of the universe. Martian Manhunter is another potential ally. His shape - shifting, telepathy, and vast knowledge of different species would be helpful. Additionally, Oracle could be an ally as she can provide information and strategic advice from behind the scenes.
One potential love interest could be Draco Malfoy. In this new scenario, as a girl, Harry might see a different side of Draco and they could develop a love - hate relationship that turns into a real romance over time. Another could be Neville Longbottom. They have a shared history of being underestimated, and as a girl, Harry might be drawn to Neville's kind and brave nature.