I'm not sure if it's a highly popular genre specifically. It might have a niche following among those interested in medieval or royalty - themed stories.
First, fanfiction communities can set clear guidelines that discourage any form of inappropriate content and encourage positive portrayals. By creating a positive environment, more people will be inclined to write and share positive Podrick stories.
I'm not entirely sure as I haven't experienced it directly. But generally, a visual novel often involves a story with characters and plotlines. Since it has 'kingsguard' in the title, it might be related to a group of guards in a king - like setting. And 'furry' could imply the presence of anthropomorphic animal characters.
In Brienne and Podrick fanfics, the theme of protection is quite prevalent. Brienne is a strong fighter and she protects Podrick, but he also has moments where he tries to protect her in his own way. Additionally, the theme of acceptance is common. They are both characters who are a bit different from the norm in their world. Brienne as a female knight and Podrick as a young squire with his own unique qualities. Fanfics often explore how they accept each other for who they are and how that acceptance deepens their bond.
One great 'oc kingsguard fanfiction' could be one where the OC has a unique backstory that ties into the world of the Kingsguard in an unexpected way. For example, an OC who was once a street urchin but through a series of events becomes a part of the Kingsguard and has to learn the ways of honor and loyalty quickly.
Since I haven't played or read it, I can't say for sure. But if it follows the typical pattern of visual novels, there are likely to be a variety of interesting characters. Given the 'kingsguard' and 'furry' aspects, there could be brave guards with unique animal - like features and personalities.
There are many talented authors in the fanfiction community. Some of the well - known ones might include those who have a deep understanding of the 'Game of Thrones' universe. They are able to capture Podrick's character traits really well. However, it's hard to name just a few as there are so many great ones out there.
A fanfiction might focus on Podrick's early days before he became Tyrion's squire. It could explore his family life, his dreams as a young boy, and how he got the determination to leave his home and seek a greater purpose. This could give more depth to his character and explain some of his later actions.
One interesting Podrick fanfiction could be about his adventures before he joined Tyrion. Maybe he was on a quest to find his long - lost family in a small village in Westeros. Another could be a story where Podrick uses his skills in a different way, like becoming a spy for a noble house. And there could also be a fanfiction that focuses on Podrick's relationships with other minor characters in the series, such as his friendship with a stable boy in King's Landing.