Since it's a very specific type of fanfiction, the common themes could also revolve around the uniqueness of the Draco as a pet. Maybe the stories explore how the Draco's natural characteristics interact with the LED element. It could also have themes of discovery, as the owner discovers new things about their LED Draco pet.
Transformation is also quite common. It could be Draco being physically or metaphorically transformed into a 'pet - like' state. And this transformation usually leads to different relationships and situations in the story. Another theme could be redemption. Maybe through his experience as a 'pet', Draco has a chance to redeem himself in some way. There are also often themes of loyalty and trust, as the relationship between the characters is redefined in the context of the 'pet' concept.
A common theme is power and control. Harry being in the position of master over Draco brings up questions about who really has power in their relationship. Is it Harry because of his new role, or does Draco still hold some power through his Slytherin cunning? Another theme is redemption. Draco, in the role of a pet, has a chance to redeem himself from his past actions as a bully.
To find 'LED Draco pet' fanfiction, you can also reach out to other fans who are into similar unusual concepts. Social media platforms like Twitter or Tumblr might be good places to start. Use relevant hashtags and ask if anyone has come across or written such fanfiction.
One common theme is the idea of taming the wild. Since xenomorphs are typically seen as extremely dangerous in the original context, fanfiction often explores the concept of taming one and making it a pet, which is a huge contrast. For example, stories might show how a human's kindness can overcome the xenomorph's natural instincts.
Another theme is dependence. The pet depends on the owner for everything from food to love. It's often shown that the pet's world revolves around the owner. In some fanfictions, this dependence is what makes the relationship so special and endearing.
One common theme is friendship. The bond between the character and her pet is often shown as a strong friendship. For example, they support each other through difficult times.
One common theme is friendship. Just like in the original Naruto series, the bond between Naruto and his pet or the relationships the pet has with other characters are often centered around friendship. For example, the pet might be a source of support for Naruto during tough times.
One common theme is the bond between the owner and the pet. It's often a deep and special connection that goes beyond the normal human - pet relationship.
One common theme is the exploration of identity. When Hermione is turned into a pet, she has to re - evaluate who she is. Another theme is friendship. It shows how her friends, like Harry and Ron, deal with her new form and how their bond is tested and strengthened.
Perhaps Draco could be a Kneazle. Kneazles are intelligent and independent, which would suit Draco's personality. As a Kneazle, he might be constantly sneaking around and getting into places he's not supposed to. Harry would have to use his wits to keep Draco out of trouble and also earn his trust, as Kneazles can be quite picky about who they bond with.