I think the interaction between Percy and Chase would be really interesting. Percy has his quick - thinking and his water powers, while Chase is the smart one in the Lab Rats with his super - intelligence bionic ability. They could have some great debates about strategy and technology vs. magic.
The interaction between Leo from Percy Jackson and Adam from Lab Rats would be fascinating. Leo is the mechanic and fire - user in the demigod world. Adam has super strength bionic powers. Leo would be really interested in Adam's bionic enhancements, and Adam would be intrigued by Leo's ability to create things out of scrap and use fire magic. They could get into some crazy situations together, like trying to build a super - weapon to fight a common enemy, with Leo providing the creative ideas and Adam the brute strength to put it together.
Definitely Percy and Eragon. Percy with his quick - witted and brave nature would have an interesting dynamic with Eragon, who is more solemn and duty - bound. They could learn a lot from each other, like Percy teaching Eragon about having a sense of humor even in tough situations, and Eragon showing Percy the importance of loyalty to a cause.
I think the interaction between Hulk and Grover would be fascinating. Grover is this gentle, nature - loving satyr, and Hulk is, well, the big green rage - monster. Grover could try to use his empathy and nature powers to soothe the Hulk, which could lead to some really comical and heartwarming moments. Also, Natasha Romanoff and Clarisse would be an interesting duo. Natasha's stealth and combat skills combined with Clarisse's brute force and no - nonsense attitude could make for some great fight scenes and character development.
Another great pairing could be Sakura and Bree. Sakura is a strong and intelligent female character in Naruto, and Bree is a powerful bionic girl in Lab Rats. They could bond over their shared experiences of being in a male - dominated group and having to prove themselves. They might also exchange fighting techniques, with Sakura teaching Bree some of her ninja - style combat moves and Bree showing Sakura how to use her bionic abilities more effectively.
Definitely Kakashi and Percy. They are both protagonists in their own right, and seeing how their different personalities interact would be fascinating. Percy is impulsive and has a strong sense of justice, while Kakashi is more reserved and calculating.
Chase from Lab Rats and Kaz from Elite Force would make an interesting pairing. Chase is the super - intelligent one in his group, and Kaz is the impulsive but brave member of his team. Their different personalities could lead to some great banter and also they could learn from each other's strengths.
I think Naruto and Adam could be a really interesting pairing. Naruto's never - give - up attitude combined with Adam's over - the - top confidence and super strength would make for some really fun and action - packed scenes. They could compete with each other at first in terms of strength, but then realize they need to work together.
One possible plot could be that the demigods from Percy Jackson's world accidentally stumble upon the Lab Rats' lair. Maybe they are on a quest and get lost in a strange dimension that leads them there. The bionic heroes and the demigods then have to team up to fight a common enemy, like a new type of monster that is part - robotic and part - mythical, created by an evil scientist who wants to take over both the mortal and the demigod worlds.
Definitely Percy and Carter. Percy is used to his own brand of heroism and power from the Greek world, while Carter has been trained in the ways of Egyptian magic. They could start off being a bit competitive, each thinking their own way is better. But as they face challenges together, they would learn to respect each other's skills. For example, when they are fighting a combined Greek - Egyptian monster, Percy's quick thinking in battle and Carter's knowledge of ancient spells could complement each other.
The interaction between Naruto and Percy would be really interesting. Naruto's boisterous and positive personality would contrast with Percy's more sarcastic and sometimes brooding nature. Another interesting interaction could be between Sasuke and Percy. Sasuke might be initially suspicious of Percy and his strange powers, but as they get to know each other, they could learn from each other's combat styles. Percy could also interact with Kakashi. Kakashi would be curious about Percy's different world and powers, and Percy could be in awe of Kakashi's Sharingan and his vast knowledge of ninjutsu.
Definitely Loki. In a 'Percy Jackson and Avengers crossover fanfiction', Loki would find Percy's world of Greek gods and demigods fascinating. He could try to use Percy's knowledge of the gods to his own advantage, or maybe even form an unlikely alliance with Percy. Loki's mischievous nature would add a whole new layer of chaos and intrigue to the crossover.