There is also the theme of secrecy. Given their positions, they would likely have to keep their relationship a secret. This adds an element of tension and mystery to the fanfictions, as they have to navigate their feelings while hiding it from their respective organizations.
The theme of love in unexpected places is quite common in 'widowmaker x tracer fanfiction'. Their initial animosity makes the idea of them falling in love very interesting to explore. Additionally, the theme of self - discovery is often intertwined. As they interact, both characters learn more about themselves. There are also fanfictions that focus on the theme of sacrifice, where one of them might have to sacrifice something for the other or for the greater good.
Love and friendship are also prevalent themes. Since they are on different sides in the game, a lot of fanfics focus on how they could overcome their differences and develop a relationship, whether it's a romantic one or a deep friendship. There's also the theme of identity. Both characters have complex identities, and fanfics often delve into how their relationship could affect or reshape their sense of self.
One common theme is redemption. Often, Widowmaker is portrayed as someone who can be redeemed through her relationship with Tracer. Another theme is the exploration of their opposing natures, like Tracer's optimism and Widowmaker's cold - heartedness at first glance.
One common theme is redemption. Since Widowmaker has a dark past in the game's lore, many fanfics focus on how her relationship with Tracer could lead to her finding a path towards redemption. For example, Tracer's kindness might make Widowmaker question her actions.
Love triangles can also be a common theme. There could be a situation where Tracer has feelings for Emily, but Widowmaker also has an unexpected connection or attraction to either Tracer or Emily. This creates a complex web of emotions and relationships that can be explored in the fanfiction.
You can try looking on fanfiction websites such as Archive of Our Own (AO3). There are a large number of Overwatch - related fanfictions there, and you may be able to find some great 'tracer loves widowmaker' stories among them.
One common theme is redemption. Writers often explore the idea of Widowmaker being redeemed through her interactions with Tracer and Emily. Another theme could be friendship or the forming of an unlikely alliance among them.
One common theme is the struggle between good and evil. Since vampires are often seen as the 'evil' in these stories, Tracer usually represents the good. There's also the theme of the supernatural world colliding with the normal world that Tracer is from. For example, in many fanfictions, Tracer has to figure out how to deal with vampire abilities that are far beyond what she's used to in her normal combat situations.
One common theme is redemption. Since Widowmaker has a dark past and is often seen as a villain, many fanfictions focus on her being redeemed through the relationship with the oc. For example, the oc might show her a different way of life or help her remember her humanity.
Another theme is trust. Since Widowmaker has a complex past and is often seen as a dangerous assassin, building trust between her and the reader is a big part of many stories. This could involve situations where they have to rely on each other in a dangerous mission.