One common theme could be friendship evolving into something more. Since Kurt and Puck are from different 'cliques' in Glee, their relationship development can be an interesting theme.
Often, there might be themes of acceptance. Puck has his own rough - around - the - edges personality and Kurt is more refined. Their relationship could explore how they accept each other's differences. Another theme could be self - discovery. As they get closer, they might learn new things about themselves. Also, themes of loyalty within their relationship could be explored, like how they stand by each other in the face of difficulties at school or within the Glee club.
You can try searching on fanfiction - specific websites like FanFiction.net or Archive of Our Own (AO3). Just use the relevant tags such as 'glee', 'kurt', and 'puck' to narrow down your search.
One common theme is family. Since they are dealing with a baby, it often involves themes of creating a new family unit or adjusting to the idea of being a family. Another is friendship, as their friends in the Glee club play a role in their journey with Baby Beth.
There could also be a theme of self - discovery through bashing. Perhaps the characters are forced to re - evaluate themselves when they are the targets of bashing in the fanfiction. They might realize their own flaws or the areas where they need to grow as a result of the negative interactions.
One common theme is their relationship development. Writers often explore how Kurt and Adam get to know each other better, their first dates, and how they overcome any obstacles in their relationship.
One common theme is friendship. Since they are both part of the Glee club, stories often explore how they become closer friends or how they support each other through different challenges in the club. For example, they might help each other with song selections for competitions.
One common theme is friendship. Given the nature of the Glee characters, stories often explore the deepening bond between Kurt and Mile. Another is self - discovery. They both go through a lot of growth in the show, and fanfictions like to continue that journey.
Friendship is a very common theme. Wes and Kurt often support each other through the ups and downs in the Glee club. Another theme is self - discovery. As they interact, they learn more about themselves.
Friendship is a very common theme. Since they are both part of the glee club, many fanfictions will explore how they support each other through the ups and downs of high school life. Another common theme is their shared love for music. They might collaborate on a musical performance or help each other improve their singing skills.
Self - discovery is also a common theme. In these fanfictions, Kurt may be on a journey to find out more about himself, and Brad could play a role in that. For example, he might help Kurt overcome his insecurities. Also, the theme of competition within the Glee club can be seen, where Kurt and Brad have to compete with others or support each other against rivals.
Friendship is a very common theme. Most fanfictions explore how Sam and Kurt's friendship evolves over time, through good times and bad. For example, they might support each other during a difficult performance or a personal crisis.