A really cool storyline might be Percy losing his memory and being manipulated by an anti - Olympian force. As he regains his memories, he has to decide whether to continue fighting against the Olympians or rejoin their side. This would create a lot of internal conflict for Percy.
In many male Olympians x Percy fanfictions, there could be a storyline about Percy being chosen by a particular male Olympian for a special mission. This Olympian might see something unique in Percy. They could then embark on a journey filled with dangerous creatures and ancient magic. Along the way, Percy might learn new things about the Olympian's past and how it relates to the current situation of the gods.
In 'Percy Against Olympians' fanfiction, there are multiple common themes. The idea of a hero's journey but in a more subversive way is one. Percy is already a hero, but when he's against the Olympians, it's a different kind of journey. Family is another theme. His relationship with his godly parent and how that affects his stance against the Olympians can be a major part of the story. Additionally, the concept of a changing world order is often present. Percy's actions against the Olympians could potentially change the entire power structure in the world of the series, and this is an exciting theme that many fanfiction writers explore.
One interesting storyline could be Artemis teaming up with Percy to face a new and powerful threat that the Olympians are unaware of. It could involve them traveling to a forgotten part of the mythical world.
Another concept is the exploration of different character backstories. Fanfiction often delves deeper into a character's past that wasn't fully explored in the original books. For instance, we could see more about Nico di Angelo's time in the Underworld before he joined Percy and the others, and how that shaped his personality and powers.
One idea could be exploring Percy's life if he had a different godly parent. For example, if he was a son of Hades, how would his powers and his relationship with the other demigods change? Another idea is to write about a time - travel adventure for Percy and his friends, where they go back to the era of the first Olympians.
Luke might also make an appearance in some fanfictions, even though he's dead in the original series. His past grievances against the Olympians could be a driving force for Percy's new opposition, or he could be a ghostly advisor to Percy, guiding him in his fight.
Another plot could be that the bullying is actually part of a scheme by a minor god who is jealous of Percy. So Percy has to figure out the real reason behind the bullying while also trying to keep his demigod identity a secret from the mortal world. He might start to notice strange things happening around the bullies, like they seem to have unnatural strength at times, which leads him on a quest to uncover the truth.
Well, one of the key storylines is Percy's journey to retrieve Zeus' lightning bolt. He is wrongly accused of stealing it, and along with his friends, he travels across different realms of Greek mythology. There are also storylines about his relationships with other demigods and his attempts to fit into the world of gods and mortals. Another important aspect is the power struggles among the Olympian gods which directly or indirectly affect Percy's adventures.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfics, and you can simply search for 'Percy Against Olympians' in the search bar. Another option is Fanfiction.net, which also has a wide range of works. Some Tumblr blogs might also feature or recommend such fanfictions.
One idea could be Percy and his friends getting trapped in a virtual version of the Underworld created by a new villain who is a master gamer. They have to use their real - world skills and in - game cheats to escape.