Well, adventure is a big theme. Mermaids might go on quests in the ocean, searching for lost treasures or trying to solve a mystery that threatens their underwater home. There's also the theme of transformation. Some fanfictions might have mermaids being able to transform into humans or having a half - mermaid, half - human form and dealing with the challenges that come with that. And of course, friendship is a theme too. Mermaids making friends with other mermaids or even with some friendly sea monsters.
To start writing mermaid fanfiction, you need to do some research on mermaid lore. Read different mermaid stories to get inspiration. Then, begin with a strong opening. You could start with the mermaid's daily life, for example, 'The mermaid swam gracefully among the seaweed, her tail glistening in the sunlight.' Develop your plot around her desires and goals. If she wants to see the human world, what will she do to achieve that? Also, don't forget to create interesting side characters like her mermaid friends or a wise old sea turtle.
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.
You can start by looking on websites like Archive of Our Own (AO3). It has a vast collection of fanfictions for various shows, including Once Upon a Time. There are different categories and filters you can use to narrow down your search, such as by pairing, genre, or rating. Another option is FanFiction.net. It's one of the older and more well - known fanfiction platforms, where you'll also find a good number of Once Upon a Time fanfictions. You can also try Wattpad, though it has a more diverse range of content, but still might have some interesting Once Upon a Time stories.
Many fanfictions on this archive focus on character relationships. Some might develop a romantic relationship between two characters that had only a platonic connection in the show. For instance, the relationship between Emma and Regina has been explored in numerous fanfictions in ways that add depth and new emotional layers to their interactions.
One popular Once upon a time slash fanfiction could be about Captain Hook and Rumplestiltskin. Some fans like to explore their complex relationship in an alternate romantic or deeply emotional way. Another might be centered around Emma Swan and Regina Mills, imagining a different kind of bond between the two strong female characters.