Adventure is also a common theme. Harry and Bill often find themselves in exciting and dangerous situations. For example, they might go on a quest to find a lost magical artifact or battle against dark forces. This makes for an action - packed and engaging story.
One common theme is loyalty. Since they are mates, loyalty is a big part of their relationship. In many fanfictions, they will stick by each other through thick and thin, no matter what challenges come their way.
Another theme is growth. Both characters usually grow as individuals because of their relationship. Bill might become more confident in his decisions, and Harry could learn more about the wizarding world from Bill's experiences. It's like they bring out the best in each other.
Often, there is the theme of redemption. If Voldemort is considered a soul mate, there could be a story arc about his possible redemption through the connection with Harry and Bill. Also, themes of loyalty and sacrifice might be present. The characters might have to sacrifice their own desires or safety for the sake of their soul mates. And of course, the theme of the power of love, as soul mates are often connected by a deep form of love, which could be a force against Voldemort's dark magic.
A common theme is the bridging of different generations. Bill is older and more experienced, while Hermione is young and brilliant. Fanfictions often explore how they learn from each other. For example, Hermione can learn about the wizarding world's past from Bill, and Bill can learn new spells and magical theories from Hermione.
One common theme is friendship. Since they come from different backgrounds within the wizarding world, their friendship is an interesting aspect to explore. Another theme is mentorship, as Bill is older and more experienced, he could potentially mentor Harry in some ways.
One common theme could be the challenges they face as a couple in this unique situation. For example, how they deal with the reactions of their friends and family.
One common theme is acceptance. Bill has to accept the blind fem Harry as she is, and she has to accept his world. Another theme could be protection. Bill often takes on the role of protecting the blind fem Harry from the dangers of the wizarding world. Also, the theme of love against all odds is present, as their relationship might not be the most conventional in the wizarding society.
One common theme is mentorship. Bill often takes on a mentor - like role for Harry, guiding him in different aspects of the wizarding world. Another theme is friendship. Despite their age difference, they form a strong bond. Also, adventure is a common theme as they often embark on various quests or face challenges together in the fanfiction.
One common theme is adventure. Bill Harry is often sent on exciting quests in different fictional settings. Another theme is self - discovery. As he faces challenges, he learns more about himself.
One common theme is mentorship. Bill often acts as a mentor to Harry, guiding him in different aspects of magic. For example, in many fanfictions, Bill teaches Harry about the history of certain magical artifacts.
One common theme is redemption. Severus Snape is often seen as a complex character in need of redemption in these fics, and his relationship with Harry plays a part in that. Another theme is forgiveness. Harry has to forgive Snape for his past actions, and vice versa.