One of the common themes is personal growth. In a lot of 'kaiba x joey fanfiction', both characters grow as individuals because of their interactions with each other. For example, Kaiba might become more in touch with his emotions, while Joey might learn to be more strategic. Also, the theme of trust often comes up. They have to learn to trust each other in various situations, whether it's during a dangerous adventure or just in their day - to - day interactions.
One popular 'kaiba x joey fanfiction' is 'Dueling Hearts'. It beautifully explores their complex relationship within the context of their duels and personal growth. Another interesting one could be 'Unlikely Bonds', which delves deeper into how their rivalry might transform into a unique friendship.
You can start by looking on Archive of Our Own (AO3). It has a large collection of fanfictions, including many 'joey x kaiba' ones. Just use the search bar and type in 'joey x kaiba' and you'll get a list of relevant stories.
One great 'joey x kaiba fanfiction' is 'The Unlikely Bond'. It beautifully explores their relationship in a way that shows their growth and understanding of each other. It starts with a chance encounter that leads to them realizing they have more in common than they thought.
A popular one is 'Kaiba's Redemption in Yugi's World'. In this fanfic, Kaiba finds himself in a situation where he has to rely on Yugi more than he ever thought. It shows their relationship evolving in a unique and interesting way.
Growth is also a common theme. They both grow as individuals within the relationship. For instance, they might learn to be more confident or more understanding. Conflict is another one. There could be external conflicts like family or work that put a strain on their relationship, or internal conflicts within themselves about their feelings for each other. For example, in some fanfictions, Parker might be hesitant to admit his feelings for Joey because of a past relationship gone wrong.
Fanfiction.net is also a good place. There are quite a few well - written 'yugi x kaiba fanfic' there. However, you might need to sift through some to find the really good ones.
You can try looking on some popular fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfics from various fandoms, and there's a good chance you'll find some great 'joey x daniel fanfic' there.
Since I'm not well - versed in this specific fanfiction, it's hard to say for sure. But common themes in fanfictions in general could be friendship, adventure, or character development.
There are also 'joey x daniel fanfic' stories that are set in a school environment. For example, they could be classmates who start out not getting along but then gradually become best friends through a series of school projects and events. They learn about each other's strengths and weaknesses and support one another.