One common theme is Hermione's transformation into a nymph and how she copes with her new nature. It could involve her learning about the powers and limitations that come with being a nymph.
Another theme could be Hermione's role in the magical world as a nymph. She might be involved in protecting the nymph community or using her newfound abilities to solve problems in the wizarding world. It could also explore how the other characters in the story perceive and interact with her as a nymph.
Another option is to join relevant fan communities on social media platforms. For example, on Reddit, there might be subreddits dedicated to Hermione fanfictions. People in these communities often share and recommend their favorite stories, and you might be able to find some great 'Hermione is a nymph' fanfictions there.
A common theme is the clash of different worlds. Percy is from his own world and the nymph from hers. Their love has to overcome the differences in their natures and habitats.
One major theme is the clash of two different worlds. Percy comes from a world of demigods and battles, while water nymphs exist in a more serene and magical realm. The fanfictions often explore how these two worlds interact when Percy meets the nymphs. Sometimes there are also themes of self - discovery. As Percy gets involved with the nymphs, he learns more about himself and his place in the wider magical universe. This can be seen in stories where Percy discovers new powers or a different side of his personality through his encounters with the water nymphs.
One common theme is the forbidden love aspect. Since Percy is often part of a different world or group, and the nymphs have their own rules and nature, their love is often seen as something that goes against the norm.
Love against all odds is also a prevalent theme. There could be many obstacles in their way, like the disapproval of other characters, or some ancient prophecy that forbids their union. But their love is so strong that they fight through these difficulties. This theme makes the stories exciting and keeps the readers rooting for the couple.
Power and control are also common themes. Dragons are powerful creatures, so when Hermione is associated with them, the fanfictions often deal with how she manages this new power. It could be about her learning to control her dragon - like instincts or using the power for good in the wizarding world. Additionally, acceptance is a big theme. Hermione has to come to terms with being different, and the wizarding community around her has to accept this new version of her as well.
A common theme is the clash of different magical worlds. Hermione comes from the world of Hogwarts and wizarding Britain, while the Mikaelsons are part of a very different supernatural world. Fanfictions might explore how Hermione adapts to this new world. There could also be a theme of love interests. Maybe Hermione falls for one of the Mikaelson siblings, which would be a big deal considering the Mikaelsons' dangerous and alluring nature. This could lead to a lot of drama and conflict as she tries to balance her feelings with the chaos that often surrounds the Mikaelsons.
One common theme is acceptance. Hermione often has to accept the werewolf side of the characters she encounters. Another is the struggle against prejudice, as werewolves are often discriminated against in the wizarding world.
A prevalent theme might be a love story. Hermione could fall in love with a mermaid or a merman. This would involve overcoming the differences between their two species, such as the fact that she is a witch and he/she is a mermaid. There would be cultural clashes as well as the physical limitations of their relationship, like how they can be together considering one lives on land and the other in water. Their love story could also be intertwined with a greater plot, like saving the mermaid population from a threat or something similar.
One common theme is redemption. Sirius has had a troubled past, and Hermione could be seen as the one to help him fully redeem himself. Another theme is the power of love across different generations. Since they are from different age groups in the original series, the fanfictions might explore how love can bridge that gap.