There are several common themes. Empowerment is a big one. A female Sam might be portrayed as breaking barriers and achieving great things in a world that might not expect it from her. Redefining her role in the story's universe is also common. Whether it's in a heroic adventure or in a more domestic setting, the fanfic might focus on how she changes the perception of what 'Sam' can be. And of course, there could be themes of love and acceptance, both from herself and from those around her.
One common theme could be the exploration of different relationships. For example, if Sam is female, how her friendships or romantic relationships might change. Another theme might be her facing challenges in a world that perhaps was originally designed around a male Sam, like having to prove herself in different situations.
One common theme could be friendship. Since Danny and Sam are often friends in the original, in the fanfic with a female Danny, their friendship dynamic might be explored in new ways.
Friendship is a very common theme. Bucky and Sam often start off with some differences but gradually become good friends. Another is redemption. Bucky, with his past, often has a journey of redemption in these fics, and Sam helps him along the way.
One common theme is the exploration of relationships. For instance, how the character Sam's partner reacts to the pregnancy. It could be a story of love and support, or one filled with challenges and misunderstandings. Another theme is the character's own growth. Sam might have to face new responsibilities and fears related to becoming a parent, which can lead to a transformation in her personality.
One common theme is friendship. Writers often explore how Sam and Miguel become friends and support each other through various situations.
Some fanfics focus on the theme of justice. Sam and Max are sort of vigilantes in a way, and in the fan - created stories, they often uphold their own brand of justice. Also, the theme of self - discovery can be present as the characters grow and change throughout the adventures in the fanfics.
One common theme is loyalty. Dean and Sam are always loyal to each other in most of these fanfics, no matter what challenges they face. For example, in many stories, they will go to great lengths to save each other from danger.
A common theme is also growth. In many fanfics, Luna and Sam start off as immature characters and through their experiences, they grow into more confident and responsible individuals. For example, in some stories, they learn about the importance of honesty when they face a situation where lying could have serious consequences. Family also often plays a role, either in the form of their own family relationships or in discovering a new family - like bond with each other.
One common theme is the idea of redemption. Crowley, being a demon, often has elements of his character that could potentially be redeemed, and Sam is sometimes the catalyst for that in fanfic. Another theme is the exploration of power dynamics. Sam has his own powers as a hunter, and Crowley is a powerful demon, and how they interact in terms of power is often explored.
Another common theme is friendship. Fanfics often highlight the strong bond between Sam and Colby. They might face challenges together, but their friendship always prevails. Mystery is also prevalent. They could be solving a mystery related to a strange occurrence in a location.
Friendship is a very common theme. Since Sam and Carly are best friends in the original show, many fanfics explore different aspects of their friendship, like loyalty and support.