One idea could be to create an OC who is a new dancer in town. This OC could bring a different style of dancing to Footloose's world, like a fusion of modern and traditional dance. They could face challenges in getting the town to accept this new form of expression.
First, know the Footloose world well. Watch the movie or read about it to understand the setting, the characters, and the main themes like the dancing ban. Then, think about your OC. Decide on their personality, their goals, and how they fit into this world. For example, are they rebellious or more diplomatic in their approach to the dancing issue?
In a footloose Merlin fanfiction, perhaps Merlin and Arthur are both in a land where dancing is forbidden. Merlin, being the more rebellious of the two in this regard, decides to secretly teach Arthur some dance moves. As they practice in a hidden corner of the castle, they form a closer bond, and Merlin uses his magic to make sure they don't get caught. This could be a fun and light - hearted fanfiction exploring their relationship in a new context.
Perhaps an OC is a young archaeology student who idolizes Nathan Drake. They manage to get involved in one of his expeditions through sheer determination. Along the way, they learn from Drake and also teach him new things about modern archaeological research methods. It could be a story of growth and adventure for both characters.
Well, you could have an OC that is a skilled hacker who gets involved with the Phantom Thieves by accident. They might have a Persona that represents a famous code - breaker from history. Also, an OC who is a foreign exchange student from a country with a very different cultural background could bring in new elements to the fanfiction. Their Persona could be influenced by their home country's folklore. Maybe an OC who is a prodigy artist and uses their art skills to create powerful items in the Metaverse, with a Persona related to a great artist from the past.
You could have an OC that is a young witch who idolizes Bayonetta. She tries to copy Bayonetta's style and fighting techniques but often fails in a comical way at first. As the story progresses, she discovers her own unique way of being a witch. Or an OC who is a cursed object collector. This OC comes across Bayonetta when investigating a powerful cursed object and they end up working together to either destroy or control the object's power.
One idea could be an OC who is a spy sent to infiltrate Doflamingo's organization. This OC could have a hidden past that slowly gets revealed as they gain Doflamingo's trust. Another idea is an OC with a special power that Doflamingo wants to control or use for his own evil plans. For example, the OC might be able to manipulate time in a small area, which could be a great asset in battles or heists.
A great concept for superhero oc fanfiction is a hero who has the power of empathy. They can sense the emotions of others and use that to either calm down villains or boost the morale of their fellow superheroes. Also, you could write about a superhero oc from another dimension who comes to our world with powers that are completely alien to our understanding, like the ability to turn into a living energy form.
One idea could be to create a 2d oc who is a time - traveling detective in a steampunk world. They could solve mysteries that are related to the alteration of historical events.
One idea could be creating an OC that is a hybrid of two different Pokemon types. For example, a half - water, half - electric type with unique abilities. Another idea is to make an OC that has a special bond with a legendary Pokemon, perhaps they are the chosen one to help the legendary in a time of crisis. Also, you could have an OC from a different region with a completely new set of Pokemon not seen before in the main series.
One idea could be creating an OC who is a long - lost relative of one of the main families in Emmerdale. They come to the village with a mysterious past and start to stir things up. For example, if they were related to the Dingle family, their arrival could cause drama as they might have a claim to some family property or secrets.