There's a fanfiction that focuses on Jack Frost's encounter with Elsa in the Frozen world. It delves deep into their similar yet different powers. The story is really engaging as it shows how they could learn from each other and how their powers could either clash or complement. It's on a smaller fanfiction forum but has gained quite a following among fans who are into this crossover. Also, there are some that are more comical, like the one where the Tooth Fairy tries to collect teeth from the Frozen characters in a very humorous way.
A common theme is the exploration of different types of magic. Since both worlds have their own magical elements, fanfictions often delve into how these magics interact. For example, how Jack Frost's power over ice compares to Elsa's.
There are often fanfictions where the Guardians from rotg come to protect Arendelle from some new threat. For example, Pitch Black could be plotting to take over Arendelle, and the Guardians team up with the Frozen characters to stop him. You can find these on various fanfiction websites like Archive of Our Own (AO3).
AO3 is excellent for RotG fanfiction. It offers a great interface for reading, and the categorization of fanfictions is very detailed. You can find stories based on different pairings, storylines, and even specific character developments in the RotG universe. Fanfiction.net also has a decent amount of RotG fanfictions. The reviews and ratings on these platforms can help you decide which ones are worth watching. Wattpad, while more diverse in content, still has some hidden gems in the RotG fanfiction section.
One popular rotg crossover fanfiction might be the one where the characters from ROTG cross over into a modern-day city setting. It adds an interesting twist as they interact with the normal humans and face new challenges.
One great rotg oc fanfiction could be about an OC who has a unique power related to dreams. For example, they can enter other people's nightmares and turn them into pleasant dreams. This adds a new and exciting dynamic to the RotG universe.
Well, some characters might be amused. They could find the creative interpretations in the fanfiction quite interesting and might even laugh at the funny or unexpected scenarios. For example, Toothless from HTTYD might be curious about how he is portrayed in the fanfictions.
Well, in the realm of 'Frozen' fanfic, the ones that delve into the backstories of the characters are often really good. For example, stories about Elsa's childhood before she had to hide her powers. These can add a lot of depth to her character. And then there are fanfics that take the 'Frozen' world and combine it with other fictional universes in a creative way, which can also be really cool.
One interesting story could be about Pitch Black's origin in the fanfiction world. Maybe it explores his past before he became the feared entity, like his childhood or the events that led him to turn dark.
Kristoff could be a focus too. His life as an ice harvester and his relationship with Sven can add a unique flavor to a fanfiction. Maybe he discovers a hidden ice cave filled with ancient secrets while out on a normal ice - harvesting trip, and he has to decide whether to keep it a secret or share it with the people of Arendelle.
One great 'Frozen X - Men Fanfiction' is 'The Frozen Mutant Alliance'. It combines the magic of Arendelle with the powers of the X - Men in a really interesting way. The story has Elsa using her ice powers alongside Storm's weather control to fight a common enemy.