One common theme is Percy's further adventures. Writers often explore new quests and challenges that Percy faces. Another theme is his relationships, like his friendship with other demigods or his romantic relationships.
Well, Wattpad can be a great place too. There are many talented writers on Wattpad who create Percy Son of Olympus fanfictions. You might also want to check out some dedicated Percy Jackson fan communities on social media platforms like Reddit. Members often share and recommend their favorite fanfictions there.
One idea could be Percy having to face a new and powerful monster that is immune to water. This would really challenge his typical combat strategies. Another could be Percy getting lost in a forgotten part of the Underworld and having to find his way out while dealing with various underworldly spirits.
Grover might also be an ally. His connection to nature could be useful in Percy's new role. For example, he could help Percy understand any nature - related aspects of Olympus or deal with nature spirits in the realm. Also, some of the more benevolent gods like Poseidon (Percy's father) and Athena (Annabeth's mother) might side with Percy, at least to some extent, as they have their own interests in seeing Percy succeed in maintaining order in Olympus.
Well, in this 'percy is raised on olympus fanfiction', it might focus on Percy having to adapt to the unique environment of Olympus. He would be surrounded by powerful deities. It could show his training, his education in the ways of the gods, and his adventures within the realm of Olympus, all while being raised there.
Maybe he has some bad experiences with the Olympian gods in the original story, and in fanfiction, those negative feelings are amplified. For example, he might be tired of the gods' constant interference and manipulation.
It's not likely that the actual Olympus (in the context of the Percy Jackson series being a place of the gods) reads fanfiction. Fanfiction is a creation of the fans in our world, and there's no indication in the books that the gods or Olympus as an entity would engage with it.
A new and powerful Titan who has been hiding and gathering strength all this time. He could be jealous of the Olympians' power and wants to take over. Percy would have to figure out his weaknesses and stop him before he causes too much destruction.
There's also Grover. He's Percy's best friend, but in a lot of fanfiction, he's just there as a sidekick. He could be developed more, like showing his growth as a satyr and his role in protecting nature. And then there's Clarisse. She's a tough and strong demigod, but often overlooked. Fanfiction could explore her in - depth feelings and her own quests that are separate from Percy's.
A really cool plot twist could be Percy finding out he has a long - lost sibling who is on the side of the Titans. This would create a huge internal conflict for Percy as he has to decide between his loyalty to his new - found family and his duty to the Olympians. It would also add a lot of drama and tension to the story as he tries to sway his sibling to the right side.