Kim and Marco would also be a great combination. Kim is a confident and capable hero, and Marco is very loyal and has his own set of skills. They could work together really well. Maybe Marco could help Kim understand some of the more out - there aspects of Star's world if they end up there, and Kim could teach Marco some of her combat techniques.
Maybe Star and Kim find themselves in each other's worlds by accident. Star, being in Kim's world, has to figure out how to use her magic without causing too much of a stir while Kim, in Star's world, has to adapt to the magic - filled environment. They then join forces to find a way back to their respective homes and along the way, they learn from each other's skills and abilities.
I think Yu and Joker would be really interesting. Yu is a calm and collected leader in Persona 4, while Joker is more of a cool and strategic leader in Persona 5. Their different approaches to leading their teams could create some great drama and cooperation.
Hermione and Sakura would be a great combination. Hermione is highly intelligent and book - smart, while Sakura is a skilled medical ninja with her own growth arc in terms of strength and confidence. They could exchange knowledge, with Hermione teaching Sakura about the complex magic theories and Sakura showing Hermione some of the medical ninjutsu. They could also work together to solve problems, using their combined wits and skills.
Percy and Alex from the Unwanteds would be really interesting. Alex has the power of transformation, and seeing how Percy would react to that and how they could use that power together in a fight or a mission would be cool.
Hermione Granger and Sherlock would be an interesting pair. Hermione is extremely intelligent and well - read in magic. Sherlock is a master of deduction. She could introduce him to the complex world of magic, and he could help her with his logical thinking when it comes to non - magical mysteries at Hogwarts. They could also have some really interesting debates about the nature of knowledge, whether it's through magic or pure logic.
Kim Possible would also be a great character in this crossover. Her ability to handle various situations and her quick thinking would be valuable in the Naruto universe. She might be able to come up with unique strategies to deal with the ninja villains, using her own set of skills and gadgets.
Hermione and Leia would be a great combination. Hermione is brilliant and resourceful, and Leia is a strong and fearless leader. Hermione could help Leia with her knowledge of spells and potions, while Leia could show Hermione how to lead a rebellion. They could both inspire each other and be a force to be reckoned with in the fanfiction.
Shaggy and Amethyst could be a great combination. Shaggy is always a bit of a scaredy - cat but also has a big heart. Amethyst is laid - back and loves to have fun. They could bond over their love for food and their easy - going attitudes, while also helping each other out during the adventures. Shaggy might be hesitant at first when facing gem - related dangers, but Amethyst could encourage him and show him that there's nothing to be too afraid of.
I think Harry Potter and Sherlock Holmes themselves would be the most interesting combination. Harry has this deep understanding of the magical world, its politics, and its secrets. Sherlock, on the other hand, has his brilliant deductive reasoning. When they come together, they can learn from each other. Harry can introduce Sherlock to magic, and Sherlock can teach Harry how to be more observant and logical in non - magical situations.
The idea of dominance in a Kim Possible meets Batman fanfiction is complex. Kim Possible has a can - do attitude and is not one to be pushed around. Batman, however, has a very strong presence. If the story was set in Gotham, Batman might seem more dominant because he knows the city so well. But if it was in Kim's world, she could have the upper hand. Also, their personalities would play a role. Kim is more open and friendly, which could help her gain allies. Batman is more intimidating, which could be an advantage in certain confrontations. So, it's really not clear who would be more dominant overall.