One common theme is the clash of cultures. Harry comes from a world of wizards in England with its own set of rules and traditions, while Arianne is from Dorne which has a very different culture. Another theme is the idea of friendship or alliance across different worlds. They often have to team up to face challenges.
They can be combined by creating a story where Arianne Martell is a transfer student to Hogwarts. She comes from a different magical culture and has different magical techniques that she shares with the students at Hogwarts. Harry Potter could befriend her and they could learn from each other.
There might be a fanfiction where Arianne Martell is secretly a descendant of a powerful wizarding family in the 'Harry Potter' universe. Harry Potter discovers this connection and they embark on a journey to uncover the secrets of her family's past, which could be tied to some ancient magic or prophecy.
One popular 'Harry Potter and Arianne Martell fanfiction' is 'The Unlikely Alliance'. It's really interesting as it brings together two very different fictional universes. The story weaves a tale where Harry and Arianne meet under rather strange circumstances and have to work together to face a new threat that neither of their worlds has seen before.
Adventure can also be a theme. Since she is from a world full of political intrigue and adventure, some fanfictions might combine her romantic experiences with her adventures in the world. For example, she could be on a quest or involved in a political plot while also having a romantic sub - plot that includes the 'lemon' elements. This adds an extra layer of complexity to the story.
Yes, there are many. You can start by looking on popular fanfiction websites like Archive of Our Own. There you might find various stories that explore the relationship between Jon Snow and Arianne Martell. Some might focus on their potential political alliances in the complex world of Westeros, while others could be more about a romantic encounter between them.
In a fanfiction, Arianne Martell might receive a mysterious gift of lemons. This could lead her on a journey to discover who sent them and why. Along the way, she could encounter various characters from the Game of Thrones world and have to use her wits, which lemons could symbolize in some way, to solve the mystery.
One common theme is power. Arianne is often depicted navigating the power struggles in her world, whether it's within her family or in the broader political arena. Another theme is loyalty. Her relationships are explored in terms of who she can trust and who she has to be wary of.
She could find a lemon tree in a hidden garden and it could be a sign of hope in a dark time. For example, in a time of war and political unrest in Dorne, the lemon tree might be the only thing thriving, and Arianne could draw strength from it.
I'm not sure who the 'best' is as it's subjective, but some popular authors in the fanfiction community might be those who have a deep understanding of Arianne's character. They would be able to write her as a strong, independent woman who is true to her Dornish roots.