One common theme is the 'fish out of water' scenario. Hermione, coming from the wizarding world of Harry Potter, is in a very different setting with Thranduil from Middle - earth. Another theme is the exploration of their different magical abilities and how they interact. For example, Hermione's knowledge of spells and Thranduil's elven magic.
Some fanfictions explore the idea of Hermione teaching Thranduil about the more modern or different aspects of magic she knows. In return, Thranduil might introduce her to the ancient elven lore and magic. This exchange of knowledge and the mutual respect that can develop from it is another common theme. Also, there can be themes of friendship, where they start as acquaintances and gradually become close friends, supporting each other through various difficulties.
One common theme is physical injury during battle. Since Thranduil is a warrior, many fanfictions explore him getting hurt while defending his kingdom or during a fight against enemies like orcs. For example, he could be seriously wounded in a skirmish in Mirkwood forest.
A common theme is friendship. Since they are both characters from the Harry Potter universe, many fanfictions explore how they could become friends despite their different personalities. Another theme is teamwork, especially in the context of Quidditch as Angelina was on the Gryffindor Quidditch team.
One common theme is the exploration of an alternate relationship. Since in the original books Hermione is with Ron, these fanfictions often play with the idea of what could have been if she was with Fred instead. It could involve different plotlines where their relationship develops during their Hogwarts years or after.
The themes usually include power. A female Thranduil is often shown as a powerful figure, having to fight for her place in a male - dominated world in Middle - earth. Adventure is also common. She embarks on various quests, just like the male heroes in Tolkien's works. And there's the theme of identity. How does a female Thranduil define herself in a world that has certain expectations of gender? It's often explored in these fanfictions. In some, she also has to deal with the theme of prejudice as a female leader.
One common theme is the clash of cultures. Since Thranduil is an elf and the other character is human, their different ways of life, values, and beliefs often collide. For example, elves might value nature in a more spiritual way compared to humans.
One common theme is culture clash. Since Thranduil is from Middle - earth and often crosses over into very different settings like modern Earth or other fictional universes, his elven culture clashes with the new environment. For example, in crossovers with a modern world setting, his view on technology and modern social norms can create interesting situations.
The theme of self - discovery is also prevalent. The OC, being in a new and magical world, often has to learn about their own strengths and weaknesses. In a story where an OC is a human in Thranduil's realm, they might discover a new side of themselves as they interact with the elves and face the challenges of the elven world.
One common theme is the clash and subsequent melding of different cultures. Harry comes from the wizarding world of Hogwarts with its own set of rules and values, while Thranduil is from the elven realm with a very different way of life. Fanfictions often explore how they deal with these differences.
Often, these fanfictions might have themes related to power dynamics in relationships. Thranduil is a king, so his status can play into the relationship with the other characters in the story. For example, there could be stories where his partner is either in awe of his power or challenges it in an intimate relationship context. Another theme could be the forbidden love aspect, as his character is often depicted as a bit aloof and reserved, so a relationship that goes against his normal behavior or status quo can be a common theme in such fanfictions.
One common theme is power dynamics. Since Thranduil is a powerful elf king and dragons are also very powerful creatures, their interactions often involve a struggle for power or respect. Another theme is mystery. Dragons are often mysterious in these stories, and Thranduil tries to figure them out.