I think a pairing between Klein and Togusa could be fascinating. Klein's more laid - back nature compared to Togusa's by - the - book style could lead to some interesting interactions. And they could both bring different skills from their respective worlds when facing challenges in a crossover situation.
One idea could be that the characters from SAO find themselves in the world of Ghost in the Shell. They have to adapt to the high - tech environment where cybernetic enhancements are common. Kirito could use his sword - fighting skills in a new context against cybernetic foes.
The Doom Slayer and Ruby. Ruby is young and full of hope, always looking for adventure. The Doom Slayer is a stoic, battle - hardened warrior. Their interaction would be really interesting. Ruby could be in awe of his strength and weapons, and the Doom Slayer might see a bit of his own unwavering will in Ruby.
Sinon from Ggo could also be very interesting. If she were to enter Sao, her sniper skills might translate in unexpected ways. She could be paired with characters from Sao and learn new combat techniques while also teaching them about the precision of long - range attacks.
I think Naruto and Kirito would be an interesting pair. Naruto is all about his exuberant and determined personality, always believing in his strength and the power of friendship. Kirito, on the other hand, is more of a lone wolf type at first but also has a strong sense of justice. Their meeting could lead to some great character development for both. Naruto could teach Kirito about the value of relying on others more, and Kirito could show Naruto some advanced combat strategies that he has learned in SAO.
Gray and Sango might make for an exciting pair. Gray with his ice - make magic and Sango with her weaponry skills. Gray could create ice weapons and structures to assist Sango in battle, and Sango could show Gray some of the more traditional combat techniques. Their personalities are also quite different, with Gray being more laid - back (most of the time) and Sango being very determined and focused on her goals.
Definitely Cortana and Tyrion Lannister. Cortana is highly intelligent and has access to a vast amount of knowledge. Tyrion is known for his wits. They could form an alliance where Cortana provides strategic advice based on her analysis, and Tyrion uses his political acumen to make things happen. Their conversations would be really fascinating as they come from such different worlds but are both very clever.
I think Naruto and Stewie would be an interesting pair. Stewie is this super - intelligent, somewhat evil - minded baby, and Naruto is a powerful ninja with a big heart. They could have some really intense battles of wits, with Stewie trying to outsmart Naruto and Naruto using his ninja intuition to see through Stewie's plans.
I think Naruto and Captain Kirk would make an interesting pair. Kirk is known for his boldness and leadership, while Naruto has his unwavering determination. They could learn a lot from each other. Kirk could show Naruto how to lead in a more structured Starfleet way, and Naruto could teach Kirk about the power of friendship and never giving up in the face of seemingly impossible odds.
I think a pairing between Ben and Tali would be really cool. Tali is a brilliant engineer, and Ben's Omnitrix is a high - tech device. She could help him understand and maybe even upgrade it, while he could protect her with his alien powers during their adventures.
A really interesting character pairing could be Spiderman and Miss Martian. Miss Martian has her telepathic and shape - shifting abilities. She could help Spiderman get into places undetected by using her powers to create illusions or read the minds of enemies. Spiderman, in turn, could teach her about his concept of 'great power and great responsibility' and how to be a more street - smart hero.