One idea could be exploring the backstories of minor characters in more depth. For example, you could write about the early life of a demigod who was only briefly mentioned in the original series. Another idea is to create alternate endings to the main story arcs, like what if the heroes had made different choices during a crucial battle? You could also focus on the relationships between the characters in a different light, perhaps showing a friendship that was hinted at but not fully developed.
A lesser - known but really interesting fanfiction is 'Annabeth's Quest for Wisdom'. This story follows Annabeth as she goes on a solo quest to gain more knowledge and wisdom. It shows a different side of her character, her determination and her thirst for knowledge in a very engaging way.
Well, a great 'Heroes of Olympus fanfiction' might be one that delves into the backstories of the minor characters. Say, a story about how the satyrs came to be part of the Camp Half - Blood. Or it could be a romantic fanfiction that pairs characters in unexpected ways, like Piper and Frank. Some fanfictions also take the existing plot and give it a darker or more comical spin. For instance, making the quests more dangerous or turning the serious situations into humorous ones.
Naruto is a must - have main character. He's the one who would likely drive the story forward with his determination and unique abilities. Then there could be characters like Hercules from the Olympus side. He and Naruto could have an interesting dynamic, maybe starting as opponents and then becoming friends. And Sakura could also be a main character, representing the medical ninja skills in this strange crossover world.
One highly regarded fanfiction is 'The Lost Hero's Redemption'. It delves deeper into the characters' emotions and backstories, adding new layers to the existing narrative. Another good one is 'A New Quest for the Heroes' which takes the heroes on an exciting new adventure that still feels true to the original series. And 'The Olympus Reborn' is also popular as it presents an interesting alternate universe scenario for the characters.
Some dedicated Percy Jackson or 'The Heroes of Olympus' fan forums might also be a good place to look for fanfiction. For example, the Percy Jackson Wiki's forum may have links or discussions about relevant fanfiction.
Another interesting fanfiction concept could be a tournament - like event where characters from the Kane Chronicles and Heroes of Olympus compete against each other in various challenges. However, they soon discover that the tournament is a ruse by a villain who wants to steal their powers. This would force them to put aside their competitiveness and join forces to defeat the real enemy.
Jason Grace is one of the main characters. He has leadership skills and is a son of Jupiter. He plays a crucial role in many of the group's adventures.
The plot is centered around the demigods. The Romans and Greeks must overcome their differences. There are seven demigods who are part of a prophecy. They face challenges like fighting the giants who are trying to overthrow the gods. Percy Jackson's journey is intertwined with the others. He has his own personal growth to deal with, especially when he gets involved with the Roman side. The characters travel to different places, both in the mortal world and in the mythological realms, all while trying to fulfill the prophecy and prevent a great war.
One possibility is that the heroes would initially be in awe of Godzilla's sheer size and power. They might try to communicate with it using their unique powers related to the Greek gods. For example, if there's a hero with the power of telepathy, they could attempt to reach Godzilla's mind. However, Godzilla's primal nature might make it difficult to establish a proper connection. Another scenario could be that Godzilla mistakes the heroes for threats and attacks them. Then the heroes would have to combine their powers, like one hero creating a shield while another uses offensive magic, to fend off Godzilla's attacks.