Cindy and Penny might form a strong bond. Cindy is a mechanic in FFXV, and Penny is a robotic girl in RWBY. Cindy could be interested in Penny's mechanics and construction, and Penny could learn from Cindy's more traditional engineering skills. They could work together to upgrade or repair machinery in the crossover setting.
Ruby would be a likely candidate. She is the leader of Team RWBY and has an open - minded nature. She would be able to see beyond Godzilla's initial appearance as a threat and might try to communicate with it. Yang, with her fearless attitude, could also be part of the alliance. She is not afraid to face powerful opponents and would be willing to fight alongside Godzilla if it means protecting the world. Blake, given her experience with different species and her ability to empathize, could also be part of the group that tries to form an alliance with Godzilla.
Ruby and Church could form an alliance. Ruby is always eager to make new friends and fight for what's right. Church, despite his snarky attitude, has a good heart deep down. They could bond over their leadership roles in their respective teams and share their knowledge about combat and strategy.
Definitely Ruby Rose and Master Chief. Ruby is the main character in RWBY, full of energy and determination. Master Chief is a well - known and iconic figure in Halo. Their different personalities and combat styles would create an interesting dynamic. Ruby's quick - thinking and agility could pair well with Master Chief's stoic and strategic approach in battles.
Jack from 'Kickin' It' and Tori from 'Victorious' seem likely. Jack is adventurous and has a good sense of humor. Tori is also quite fun - loving and creative. They could bond over their shared love for trying new things and standing up for what they believe in.
Kirby and Yang could also make an interesting pairing. Yang is strong and brash, while Kirby is small but mighty. Their personalities contrast but could also complement each other well. Yang could provide the brute force while Kirby could use his unique powers to support her in battles, like when she's facing a particularly tough Grimm.
I think Naruto and Ruby would be likely to form an alliance. Naruto is always eager to make friends and help others, and Ruby has a similar kind of positive, can - do attitude. They both lead their respective teams in their own universes, so they would understand each other's leadership roles and could work well together.
Batman and Kakashi would be likely to form an alliance. They are both very intelligent and strategic. Batman is known for his detective skills and Kakashi is a highly skilled ninja. They could work together to figure out the motives of the villains in the crossover and come up with a plan to stop them. They would also respect each other's combat abilities.
Sasuke and Duncan might form an alliance. They both have a bit of an edgy and brooding personality. They could respect each other's skills. Sasuke's ninja skills in combat and Duncan's street - smart and tough - guy attitude would make them a formidable pair in any challenges they face in the crossover.
I think Harry Potter and Captain America would be likely to form an alliance. Harry is a natural leader who has faced great evil in his world, and Captain America is all about justice and doing what's right. They would respect each other's values and leadership skills. They could lead their respective teams, the Hogwarts students and the Avengers, in the fight against the common enemies like Voldemort and Thanos.
Toad and Blake could form an alliance. Toad is small but mighty, and Blake is stealthy. They could work together in reconnaissance missions. Toad could use his speed to quickly gather information, and Blake could use her cat - like senses and stealth to move around undetected and protect Toad if they are discovered.