Naruto and Raleigh. Naruto's energetic and fearless nature combined with Raleigh's experience as a Jaeger pilot would make for an exciting pairing. They could learn from each other, with Naruto teaching Raleigh about chakra and Raleigh showing Naruto the ins and outs of piloting a Jaeger.
Kakashi and Stacker Pentecost. Kakashi is a highly skilled and intelligent ninja. Stacker is a great leader in the Pacific Rim world. Their pairing would be interesting as they could both lead the combined forces. Kakashi could offer his strategic thinking from his ninja experiences, and Stacker could introduce Kakashi to the military - style operations of the Jaeger program.
Wonder Woman could be the most interesting. Her Amazonian training and warrior skills would make her a natural fit in the Jaeger - fighting world. She could also bring her lasso of truth and bracelets to the fight. Maybe she could use the lasso to restrain a Kaiju or figure out some of their secrets. And her strong sense of justice would mesh well with the overall theme of the crossover.
Newt Geiszler could also be a key character. He's the Kaiju expert in the Pacific Rim universe. His fascination with Kaiju could extend to Godzilla. He might try to study Godzilla and figure out how his biology and abilities are different from the regular Kaiju. His insights could be crucial in forming a strategy to fight the common enemies.
Another great pairing could be Sasuke and Griffith. They both have a certain level of ambition and a thirst for power. They might start off as rivals, constantly trying to one - up each other in terms of strength and influence. But as they face greater threats together, they could learn to respect each other and even form an uneasy alliance. It would be fascinating to see how their different motives play out when they are forced to work together.
I think Spyro and Kakashi would be an interesting pair. Kakashi is a very experienced and intelligent ninja, and Spyro is a powerful dragon with unique abilities. Kakashi could be intrigued by Spyro's magic and his different combat style. And Spyro could be in awe of Kakashi's Sharingan and his vast knowledge of ninjutsu. Also, Spyro and Sakura could be a good pair. Sakura has grown into a strong kunoichi, and Spyro could help her further develop her combat skills, especially in terms of using her strength in more creative ways.
I think Naruto and Integra would be a fascinating pairing. Integra is a strong and authoritative leader in the Hellsing world, and Naruto has his own leadership qualities within his ninja team. They could have some really interesting discussions about leadership, duty, and protecting their respective worlds. Also, Kakashi and Alucard would be a cool pair. Kakashi is known for his calm and collected nature, and Alucard's unpredictable and powerful presence would create a great dynamic. They could exchange knowledge about combat techniques and strategies from their different worlds.
Naruto and Frisk would be really interesting. Naruto is all about never giving up and has a strong sense of justice, while Frisk is determined in their own way, always choosing the path of peace and kindness in Undertale. Their combined determination could lead to some great adventures and they could learn a lot from each other's ways of dealing with challenges.
Naruto and Aang would be a great pairing. They both have a lot of similarities. They're both young heroes with a strong sense of justice and a big heart. They could learn a lot from each other's cultures and ways of fighting.
Naruto and Lion - O would be an interesting pairing. Naruto is full of energy and determination, and Lion - O is a noble leader. They could learn from each other's leadership styles. Naruto could show Lion - O how to inspire through his own brand of perseverance, and Lion - O could teach Naruto about the responsibilities of being a true leader. Another interesting pairing would be Sakura and Cheetara. Sakura has her medical ninjutsu skills and combat abilities, while Cheetara is fast and agile. They could train together and exchange fighting techniques.
Naruto and the Penguin would be an interesting pairing. Naruto's naivete and Penguin's deviousness would create a great contrast. Naruto might try to reform Penguin, seeing the good in him, while Penguin would be constantly plotting against Naruto, creating a lot of comical and tense situations.
I think Kakashi and Riddick would make an interesting pair. Kakashi is a highly skilled ninja with a lot of wisdom, and Riddick has his own set of skills and street - smart knowledge. They could exchange ideas about combat strategies. Also, Hinata and Riddick could be an unexpected but interesting pairing. Hinata's gentle and shy nature could be a foil to Riddick's rough exterior, and she might be able to show him a different way of looking at things in the Naruto world.