Another interesting pairing could be Ganon and Salem. Both are powerful villains in their respective universes. They could form an alliance in the crossover fanfiction. Ganon's brute strength and dark magic combined with Salem's cunning and ability to manipulate would create a truly terrifying force. And the heroes from both worlds would have to work together to stop them.
Link and Black Widow would be an interesting pairing. Link is a stoic hero with his own code of honor, and Black Widow is a trained assassin with a complex past. They could learn from each other's combat styles. Link could teach Black Widow some of his swordsmanship, and she could teach him some stealth and espionage techniques.
Another one could be Weiss and Zelda. Weiss, with her noble upbringing, might find common ground with Zelda, who is also a princess. They could bond over their leadership skills and the need to protect their respective worlds. In fanfiction, they might team up to face a great threat that endangers both Remnant and Hyrule.
One interesting plot could be that the heroes from The Legend of Zelda, like Link, find themselves in the world of RWBY. Link might have to team up with Ruby and her friends to fight a new common enemy that is a fusion of the dark forces from both universes. For example, Ganon's magic combines with Grimm energy to create a super - powerful and menacing foe.
The Doom Slayer and Ruby would be an interesting pairing. Ruby is young and full of energy and hope, while the Doom Slayer is a silent, stoic force of destruction against evil. Their interactions could be really cool, like Ruby trying to understand the Doom Slayer's lack of words but seeing his determination and being inspired by it. And the Doom Slayer might see Ruby's potential and unwavering spirit in the face of danger as something similar to his own.
Ruby and Noel would be a great pairing. Ruby is young, energetic, and has a strong sense of justice. Noel is also a very determined and kind - hearted character. They could bond over their shared values and also learn from each other's combat styles. Ruby could show Noel some of her acrobatic moves with Crescent Rose, while Noel could teach Ruby some of the finer points of her swordsmanship.
Ruby and Frisk would be a really interesting pairing. Ruby is full of energy and determination, and Frisk has that unwavering kindness. They could learn a lot from each other, especially in terms of how they approach difficult situations and make decisions.
I think Ruby and the Dragonborn would be an interesting pairing. Ruby is young and full of energy, and the Dragonborn has a lot of power and experience. Ruby could learn a lot about different forms of combat from the Dragonborn, and the Dragonborn could be inspired by Ruby's positive attitude.
I think Uryu and Weiss could be a fascinating pairing. Uryu is the Quincy with his pride in his heritage, and Weiss is the Schnee heiress with her own sense of family pride. They could have some intense debates about their families and legacies. At the same time, they could learn from each other's combat styles. Uryu could show Weiss how to be more adaptable in battle, while Weiss could teach Uryu about the importance of elegance in combat.
I think Mercy and Ruby would make an interesting pairing. Mercy is a healer in Overwatch and Ruby is the leader of Team RWBY. Ruby could learn about Mercy's advanced medical technology and how she uses it in combat. Meanwhile, Mercy could be inspired by Ruby's determination and leadership. Another great pairing could be Winston and Yang. Winston is a brilliant scientist and a powerful fighter as a gorilla. Yang is a brawler with a lot of strength. They could have some epic sparring sessions and also exchange knowledge about strength - based fighting and scientific inventions.
Ruby and Yu Narukami. Ruby is young and full of energy, always eager to fight for what's right. Yu is a calm and collected leader. Their different personalities would make for an interesting dynamic. Ruby could learn from Yu's more methodical approach to problem - solving, while Yu could be inspired by Ruby's unwavering determination.