One popular storyline could be Merida teaching Macintosh some of her archery skills. Since Merida is a skilled archer in her own right, she might show Macintosh how to properly hold a bow and aim for the target. Another could be them going on an adventure together through the Scottish Highlands, facing magical creatures and solving mysteries along the way. It could also involve Macintosh getting into trouble and Merida using her wits and courage to get him out of it.
Well, Merida comes from a medieval - like Scottish setting with a strong sense of tradition and magic. Macintosh, on the other hand, is often associated with a more modern or technological world. To blend their backgrounds, the author could have Merida discover a magical portal that leads her to Macintosh's world. There, she could be amazed by the strange machines and new ways of doing things, while Macintosh could be intrigued by her primitive yet powerful magic and her way of life. They could then exchange knowledge and skills, forging a connection between their two very different worlds.
Some social media platforms like Tumblr can also be a source. There are often bloggers who are into fanfiction and might post or reblog stories about Merida and Young Macintosh. However, the search on Tumblr can be a bit tricky as it's not as organized as the dedicated fanfiction sites.
The contrast between their personalities. Merida is strong - willed and adventurous, while Young Macintosh is more of a traditional character. Their interactions can create unique storylines.
One common theme is adventure. Since both characters are known for their勇敢 (bravery in Chinese), they often go on exciting adventures together in fanfictions.
Family relationships are a big theme. Some fanfics focus on the family dynamics between characters like the Charmings and their descendants. There are also fanfictions that revolve around the theme of identity. Characters in 'Once upon a time' often have complex identities, and fan writers like to dig deeper into how these identities are formed and how they can change over time.
A 'found family' trope is quite common. Characters who were alone or estranged in the show form a close - knit family in fanfiction. For instance, Henry might bring together different characters who then become his new family. Also, the 'hurt/comfort' trope, where a character is hurt (physically or emotionally) and another character comforts them, is frequently used in Once upon a Time fanfics.
Begin by choosing your favorite characters from 'Once upon a time'. Decide if you want to focus on one character's story or a group of them. After that, plan out the plot. You can make a simple outline of the beginning, middle and end. Consider the setting, whether it's the Enchanted Forest or Storybrooke. Also, think about the tone of your fanfic. Do you want it to be light - hearted, dark, or something in between? Once you have these elements in place, just start writing. Don't worry too much about making it perfect at first, you can always edit later.
A prevalent trope is the 'reincarnation' trope. Fans might write about how the characters are reincarnated in different time periods or worlds and how their relationships are rekindled. 'Power - swapping' is another interesting one, where characters exchange their powers and how that affects their relationships and the story. There are also 'secret relationship' tropes, especially for characters who had a lot of chemistry on the show but never got together officially, like Belle and Will Scarlet. Writers create scenarios where they have a secret relationship and all the drama that comes with it.
You can try websites like Fanfiction.net or Archive of Our Own (AO3). Fanfiction.net has a large collection of fanfics from various fandoms, including Once upon a Time. Just use their search function and type in 'Once upon a Time'. AO3 is also great as it has a well - organized tagging system, making it easier to find specific types of Once upon a Time fanfiction, like those focused on a particular character or relationship.