Another theme could be about their growth as musicians. How they inspire each other to improve their music, try new styles, or overcome stage fright. For instance, Johnny's discipline might influence Ash to be more focused on her music, and Ash's creativity could inspire Johnny to break out of his comfort zone.
Overcoming obstacles is also a prevalent theme. It could be external obstacles like the cut - throat competition in the 'Sing' world. Or it could be internal ones like Johnny's own family expectations conflicting with his dreams. The reader character might play a crucial role in helping him overcome these, and this theme of mutual support and growth is often seen in this type of fanfiction.
One popular theme is their relationship development. Writers often explore how they get closer and understand each other better over time.
I'm not sure specifically which 'sing ash x johnny fanfiction' stories are popular. You could try searching on fanfiction websites like Archive of Our Own or FanFiction.net. Maybe look for tags related to 'sing ash' and 'johnny' to find relevant stories.
One common theme is the development of a romantic relationship between Johnny and the reader. It often involves the two characters sharing special moments while singing, like a duet that deepens their connection. Another theme could be the reader's journey to overcome self - doubt with Johnny's support, especially in the context of singing in public or achieving a singing - related goal.
A common theme is friendship. Writers often explore how Ash and Johnny form a strong bond, whether it's through shared interests or going through hardships together.
The theme of redemption can also be found in some johnny and ash fanfiction. Maybe one of them has made mistakes in the past and through their relationship with the other, they find a way to redeem themselves. This adds depth to the characters and the overall story. It shows that they are not just one - dimensional but complex individuals with a past and the potential for growth.
One common theme is friendship. Writers often explore how Ash and Johnny become friends and the adventures they have together. Another theme could be competition, as they might be in a situation where they are competing against each other in some kind of event.
One common theme is friendship. Since they are characters from the Sing universe, fanfictions might explore how Ash and Lance's friendship develops over time. Maybe they start out as rivals in the singing competition but gradually become good friends and support each other.
You can try Archive of Our Own (AO3). It has a vast collection of fanfiction from various fandoms. Just use the search function and type in 'sing ash x johnny' to see if there are any relevant stories.
One common theme could be overcoming obstacles. Maybe they come from different backgrounds or have different goals in life, and the fanfiction focuses on how they overcome these differences to be together.