Love against all odds is also a popular theme. Given Severus's brooding and often difficult personality, the idea of an OC falling in love with him and vice versa, despite all the obstacles, is very appealing. It could be the differences in their backgrounds or Severus's reputation that create these odds.
Another theme is the exploration of Severus's hidden depths. The OC might be the one to discover parts of Severus that others don't see, like his sense of humor or his more tender side. This helps to humanize him further in the fanfiction world.
One common theme is redemption. Often, Severus's complex past is explored, and the OC plays a role in his journey towards redemption. For example, the OC might show him kindness or understanding that he hasn't received before.
One common theme is redemption. Often, Severus is seen as a character who has a lot of past mistakes and the OC can be a catalyst for his redemption. Another theme is the discovery of true self. The OC, being an original character, can bring out aspects of Severus that were hidden. For example, in many stories, the OC makes Severus realize his capacity for love and kindness.
Another theme is the breaking down of barriers. Snape is a very guarded character, and in these fics, the OC has to work hard to break through his emotional walls. It can be through shared interests in potions or a mutual understanding of the wizarding world's darker side. For instance, they might both have had experiences with the Death Eaters that bring them closer together. This theme of two damaged souls finding solace in each other is quite prevalent. And it makes for some really engaging storytelling as the relationship unfolds in the context of the Hogwarts and the wider wizarding world.
Love against all odds is also a popular theme. Given Severus' complex personality and past, the relationship with the OC is often fraught with difficulties, whether it's dealing with the wizarding world's opinions or Severus' own internal struggles.
Often, there's the theme of redemption. The OC might be involved in Snape's journey towards redemption. His dominant nature drives the story as he tries to right his wrongs with the OC's help or influence. Also, the exploration of the Slytherin values is a theme. Snape, as a Slytherin, passes on these values in a dominant manner to the OC, who may or may not be from Slytherin.
Mentorship is also a popular theme. Severus can be seen as a mentor to Draco, guiding him through the difficult world of magic, especially in the context of the dark times at Hogwarts. Additionally, the theme of family and legacy is often explored. Given their family backgrounds, how they deal with the expectations and burdens of their families is a key aspect in many fanfictions.
One common theme is redemption. Many fanfictions explore Severus's journey towards redemption through his interactions with female characters. For example, a female character might help him come to terms with his past mistakes and find a new path in life.
The theme of unrequited love or hidden feelings sometimes pops up in James and Severus fanfiction. Maybe Severus had some feelings for James that he never showed, or vice versa. It adds a layer of complexity and drama to the stories. And then there's the theme of self - discovery. Through their interactions, they might learn more about themselves and grow as characters, which is always an appealing aspect in fanfiction.
Another theme is redemption. Severus is often seen as a character who is trying to redeem himself through his love for Lily. His actions, whether good or bad, are sometimes motivated by his love for her and his desire to make up for past mistakes.
Often, there's the theme of secrecy. Since Severus is a rather private character, his dragon form is something he might want to keep hidden. There's also the theme of protection. He may use his dragon form to protect something or someone he cares about, like Hogwarts or a particular character. For example, in some fanfictions, he guards the students from dark forces in his dragon form. This ties into his complex character as someone who has always been a bit of an outsider but still has a strong sense of loyalty.
One popular theme is redemption. Snape is a complex character with a troubled past, and an OC can be a part of his journey towards redemption. The OC might see the good in him and encourage him to let go of his grudges and past mistakes.