One popular theme could be their growth as players. In many fanfictions, their journey from rivals to teammates and how they support each other on the court is explored. Another theme might be friendship. Their unique bond, which is a mix of competition and camaraderie, can be delved into deeply. For example, fanfictions might show how they overcome misunderstandings off the court and strengthen their relationship.
You could also try Wattpad. Although it has a broad range of content, there are some dedicated Haikyuu! fans who post their fanfictions there. Just be aware that the quality can vary more on Wattpad compared to other platforms. Look for stories with high ratings and positive reviews to find the better ones. And don't forget to check the comments section as other readers might give insights or warnings about the story.
I'm not sure if there is a specific 'evil naruto x hinata lemon fanfiction' available. Fanfiction is a vast and diverse field, and while there may be many Naruto - Hinata fanfictions, the 'evil naruto' and 'lemon' (which often implies sexual content in fanfiction terms) combination might not be as common or might even violate some fanfiction site's rules.
In the manga, Hinata doesn't outright beat Kageyama. Their relationship is more about mutual growth and competition rather than one consistently defeating the other. Both characters have their strengths and weaknesses, and the story focuses on their development together on the volleyball court.
Kageyama and Hinata do not date in the manga. Their focus is on improving their volleyball skills and achieving success on the court. Their bond is more of a strong partnership and mutual respect within the sport.
There are also fanfictions where their fight is more of a competition. They both want to be the star player on the team, so they start competing aggressively. This turns into a fight where they both say some harsh words. However, through the help of their teammates, they come to understand that they are stronger together.