Megara is an obvious choice. She has a complex relationship with Hercules and can add a lot of drama and emotional depth. Philoctetes, Hercules' trainer, is also great. He can provide wisdom and comedic moments. Then there are the gods and goddesses like Zeus, Hera, and Aphrodite. Each of them can bring their own motives and powers into the story. Also, including some original characters like a young boy who idolizes Hercules and follows him on his adventures could be interesting.
A possible plot for Hercules fanfiction might be that Hercules discovers a hidden part of his past that changes his perception of himself. Maybe he finds out he has a long - lost family member who has been trapped in a different realm. He then has to journey to this strange realm, which is full of its own set of rules and challenges. There, he not only has to rescue his family member but also has to deal with the political intrigue and power struggles within that realm. It could be a story of self - discovery as well as heroism.
One idea could be to explore how Hercules' incredible strength affects the Fate universe. Maybe he is summoned as a Servant in a Grail War and his brute force challenges the traditional battle strategies of other Servants. His Twelve Labors could also be incorporated in some way, like each Labor being a trial he has to face within the context of the Fate story.
Maybe Hercules is somehow sent to the Naruto universe. He would be this super - strong figure among the ninjas. He could learn some ninja techniques, like how to use chakra, which is different from his own strength. And his great strength could also be an asset in the battles in the Naruto world, especially against the big - bad villains like Pain.
A popular one is 'The Bond of Heroes'. This fanfiction delves deep into the relationship between Xena and Hercules. It shows how they support each other through various challenges, and the character development is top - notch. The descriptions in this story are so vivid that you can easily picture the scenes in your mind.
The setting. Harry Potter is set in a modern - day, albeit magical, Britain. There are schools, trains, and a society much like our own but with magic. Hercules is set in ancient Greece. Also, the characters. Harry is a young wizard learning about magic, while Hercules is a demigod with superhuman strength. Their storylines are also different. Harry's is about fighting evil in the wizarding world, Hercules about his heroic deeds in Greek mythology.
Perhaps it's related to some ancient ninja art or a hidden power within Naruto himself that gets awakened. In the Naruto universe, there are often latent powers waiting to be discovered. This Hercules - like strength could be tied to his Uzumaki heritage or some long - forgotten jutsu. He may initially struggle with this new power, not knowing how to fully utilize it without causing harm to himself or others. But as the story progresses, he learns to master it.
One common theme is the clash of cultures. For example, when Hercules crosses over into a modern - day superhero universe like the Marvel or DC universe, his ancient Greek values and ways of doing things are very different from the modern heroes. Another theme is power dynamics. Hercules is extremely powerful, so when he teams up or clashes with other powerful characters, it creates interesting scenarios.
A frequent theme is the reimagining of relationships. In many female Hercules fanfictions, her relationships with other characters, like her friends or love interests, are different from the original male - centered stories. For example, she might have a more equal partnership with a male character instead of the male being in a dominant role. Also, the theme of self - discovery is common. As a female in this new role, she has to figure out who she is and what her place is in the world, both as a Hercules and as a woman.
In a fanfiction of Shirou and Female Hercules in FSN, it could explore their relationship in a more romantic light. Imagine Shirou being in awe of Hercules' power at first, but as they spend time together, he discovers her more feminine and vulnerable side. Hercules, on the other hand, might be drawn to Shirou's unwavering sense of justice and his kind heart.