A common theme could be the development of a unique relationship between Sam Strachan and the Original Character (OC). It might involve the OC helping Sam through some tough situations in the story's universe.
Another option is to look for fanfiction review blogs or channels. Sometimes, these reviewers focus on particular fandoms and might have covered 'sam strachan x oc' fanfiction. They can give you an idea of which stories are worth reading based on factors like writing quality, how well the original characters are integrated, and the overall creativity of the plot.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions. Just use the search bar and type in 'Casualty Sam Strachan x OC' and you'll likely find many stories.
First, you need to know the characters well. Watch Casualty episodes with Sam Strachan to understand his personality, mannerisms, etc. For the OC, create a detailed backstory, including their appearance, personality traits, and goals. Then, just start writing. Maybe begin with a scene where the OC and Sam meet for the first time.
One common theme is adventure. Since 'Until Dawn' has an adventurous setting, many fanfictions with Sam and an OC involve them going on some sort of adventure together, facing challenges and growing closer through it.
One great 'Until Dawn Sam x OC fanfiction' is 'Sam's New Adventure'. It really delves into the relationship between Sam and the OC in a creative way. The author does a wonderful job of building the character of the OC and making their interactions with Sam feel natural.
The OC can be developed by giving her a unique backstory. For example, if she has a troubled past, it can shape how she reacts to Sam's imprinting. Her hobbies and interests are also important. If she loves books, it can be a way for her to bond with Sam over shared literary interests. Another aspect is her relationships with other characters in the fanfiction, like her family or friends. These relationships can show different sides of her personality.
Fanfiction about Sam and Freddie from iCarly often explores their relationship in different ways. Some might focus on their chemistry that was hinted at in the show. It could be about how they might get together in an alternate universe or how their relationship could develop over time.
Fanfiction about Michael and Sam in 'Supernatural' often explores unique relationships. Some might focus on the power dynamics between the two, as Michael is an archangel and Sam has his own powers. Writers may also delve into the psychological aspects of how they interact with each other, given their complex characters in the original show.
One great Sam Winchester OC soulmate fanfiction is 'Soulbound to Sam'. It has a really interesting take on how the OC and Sam meet and discover they're soulmates. The author does a wonderful job of building their relationship gradually.