Yes, there are quite a few. You can find them on various fanfiction websites. Some might focus on his growth as a player from a female character's perspective, showing how she witnesses his development in the sport.
Since I don't have in - depth knowledge about Sawamura Harutarou's light novels specifically, it's difficult to point out the popular ones. But light novels often have distinct art styles for their covers, which might attract readers initially. His works could have themes like love and loss, where characters grow and change as a result of their experiences. There might also be elements of mystery, where readers are kept on their toes, trying to figure out what will happen next in the story.
You can try fanfiction.net. It has a large collection of fanfictions, and you might be able to find some great ones about Sawamura Eijun from a female - centered perspective there.
The theme of rivalry also exists in some fanfictions. While they are friends and teammates, there can be a friendly rivalry between them. This rivalry can be in terms of who is a better pitcher or catcher, or who can contribute more to the team. It adds an interesting dynamic to the stories and shows different aspects of their relationship.
Another interesting plot could be a time - travel fanfiction. Miyuki and Sawamura are sent back in time to the early days of their baseball careers. They use their present - day knowledge and skills to change some of the mistakes they made in the past, which in turn has a big impact on their current team's success.
Since I don't know much about Sawamura Harutarou's light novels, a possible starting point could be to look for any of his works that have been translated into your preferred language if you're not reading in the original Japanese. You can also try to find reviews or discussions on light novel forums or communities. They might be able to give you some insights into which of his works are more accessible or interesting for new readers. Another option is to start with the ones that seem to have the simplest synopsis, so you can ease into his writing style.
Well, 'Harmony on the Field' is a miyuki kazuya x sawamura eijun fanfiction that's quite popular. It focuses on how their different personalities complement each other on and off the baseball field. It shows miyuki's strategic mind and sawamura's fiery spirit working together in a really engaging way. There are also some really nice character - development arcs in this fanfiction.
For Sawamura, his character could be developed by exploring his insecurities more deeply. In fanfiction, he could have moments where he doubts his abilities as a pitcher, not just in terms of his skills but also his mental strength. Miyuki could then be the one to help him through those tough times, which would strengthen their bond.
Tan Kai played the role of Dong Yao in the TV series Crime Crackdown." Dong Yao was the mayor of Shimen District of Green Vine City, and also a pawn of Gao Mingyuan, the chairman of Long Vine Capital. In the drama, he faced pressure from Li Chengyang and the investigation team, and at the same time, he was planning his own escape. Tan Kai displayed the complexity and drama of Dong Yao's character through his rich inner thoughts, eyes, micro-expressions, and micro-movements. He successfully interpreted the psychological activities and emotional changes of Dong Yao, a two-faced character, and left a deep impression on the audience. Dong Yao's character played an important role in the play. His identity and behavior were gradually revealed, arousing the interest and curiosity of the audience. Tan Kai's performance received the audience's appreciation and attention.
The shadow of Qingyu Nian wasn't Lin Dabao. Even though the Shadow's identity was set as Da Bao at the beginning of the play, the Shadow was actually a person of Dongyi, the younger brother of the number one expert in Dongyi, Sigu Jian. The Shadow chose to use Da Bao's identity as a fool to make people lower their guard against him so that they could complete their mission. Therefore, the shadow of Qing Yu Nian was not Lin Dabao.