One interesting crossover could be Naruto and Percy Jackson teaming up to fight a common mythological enemy. For example, a creature from Japanese mythology that has somehow made its way into the world of Percy Jackson. They could combine their unique powers, like Naruto's ninjutsu and Percy's control over water. Another could be a story where they exchange their skills, with Percy learning some basic ninja moves from Naruto and Naruto learning more about controlling water from Percy.
A really cool crossover might involve the demigods from Percy Jackson's world ending up in the Hidden Leaf Village in Naruto. They could learn about ninjutsu and the shinobi way of life, while also sharing their own powers and knowledge. For example, Percy could show how he controls water with his powers, which might be a new concept in the Naruto world.
One interesting crossover could be a scenario where Naruto and Percy face a common enemy that combines the threats from their respective worlds, like a water-based demon that can also control the elements like a ninja. This would force them to combine their unique skills, with Naruto using his shadow clones and jutsus while Percy wields his sword and controls water.
One interesting crossover could be the characters from Percy Jackson ending up in Middle - earth from The Hobbit. For example, Percy using his water powers in the rivers of Middle - earth. It would be a cool way to see how his abilities interact with the new environment.
One interesting crossover could be the demigods from Percy Jackson getting involved in an NCIS case. Maybe they are suspects at first because of their strange powers, but then end up helping the NCIS team solve a mystery related to some ancient artifact with magical properties.
One interesting crossover could be Percy using his water powers to navigate through the flooded areas of Jurassic Park. Maybe he helps the survivors by creating water barriers to keep the dinosaurs at bay. Another idea is that the demigods from Percy Jackson's world have to face off against the dinosaurs in a special quest. It would be really cool to see how they'd use their powers against such huge and powerful beasts.
One interesting crossover could be Percy's powers interacting with the dark and twisted world of Bloodborne. For example, his ability to control water might have unique effects in the blood - soaked streets of Yharnam. Maybe he could use water to cleanse some of the corrupted areas or fight against the grotesque beasts in a different way than the hunters in Bloodborne do.
One interesting crossover could be the powers of the demigods in Percy Jackson combined with the high - tech abilities of the Avengers. For example, Percy's water - controlling powers could be used to put out fires during an Avengers - level battle in a city. Or Annabeth's strategic mind could help the Avengers plan better attacks against a common enemy.
One interesting crossover could be the combination of Percy's water - based powers with some of the more aquatic - related SCP entities. For example, if Percy were to encounter an SCP that is a powerful water - based creature, it would create a really cool dynamic. Maybe he'd have to use his skills to either control or defeat it.
In a Percy Jackson - Frozen fanfiction, perhaps Annabeth could meet Anna. Annabeth would be impressed by Anna's determination and loyalty. They could go on an adventure in the Arendelle kingdom, with Annabeth using her strategic mind to solve problems that the Frozen world is facing, like a strange curse that is making the ice in the kingdom melt uncontrollably.
One interesting crossover could be Percy using his water powers to help Supergirl when she's facing a fire - based villain. Maybe she's having trouble with a foe who can control intense heat and Percy steps in to douse the flames with his ability to manipulate water.