It's hard to say who the 'best' are as it depends on personal taste. However, some authors who are quite popular in the Rock Lee fanfiction community are known for their ability to capture his essence. For example, some writers focus on his comical side, like when he tries to impress Sakura in his own clumsy yet endearing way.
Rock Lee has a sad story of constantly facing challenges due to his inability to use ninjutsu at first. He was often looked down upon by his peers. But he didn't give up. He trained extremely hard, pushing his body to the limits with his taijutsu. For example, his weights that he always carried around were a symbol of his self - imposed hardship. All he wanted was to prove himself as a great ninja in his own way.
I don't really know if the 'rock lee ghost story' is popular. It could be popular within a niche community of fans who are really into Rock Lee and also interested in ghost stories. But if it's not widely known outside of that small group, then it's not very popular in general.
Rock Lee is a character who overcomes his lack of natural talent in ninjutsu through sheer hard work and determination. His character is defined by his loyalty to his friends and his village. Tenten, being a weapon - specialist, is not just about fighting. She also has a side to her where she is a good friend. In this fanfic, they are the central figures around which the story is likely to revolve.
In many fanfictions, their relationship starts off as comrades. Rock Lee is always respectful towards Sakura. As the story progresses, Rock Lee's admiration for Sakura might grow. For example, he could be impressed by her growing strength in combat or her medical skills. Sakura, on the other hand, might start to notice Rock Lee's unwavering dedication and loyalty, which could make her see him in a new light."
,"Answer2": "Often, a shared mission or a common enemy can be the catalyst for their relationship to develop. During a dangerous mission, Rock Lee could put his life on the line to protect Sakura. This selfless act would make Sakura realize how much Rock Lee cares for her. And Rock Lee, seeing Sakura's courage in the face of danger, would be even more attracted to her. Their relationship might then slowly transform from just friends to something more romantic, with Rock Lee finally mustering the courage to confess his feelings."
,"Answer3": "Some fanfictions explore the idea of Rock Lee and Sakura bonding over their insecurities. Rock Lee has always been insecure about his lack of natural talent in ninjutsu, while Sakura has had her own self - doubts regarding her physical strength compared to her male counterparts. They could support each other, with Rock Lee teaching Sakura some of his unique training methods and Sakura helping Rock Lee with his confidence. This mutual support could lead to a deep emotional connection between them, and their relationship could develop into a loving partnership as they overcome their insecurities together.
A really interesting 'Naruto Rock Lee Fanfiction' is 'Lee's Hidden Potential'. In this story, Rock Lee discovers a new form of power within himself that is not related to the normal chakra system. It's a fresh take on his character, and it explores how he adapts to this new power while still staying true to his original values of hard work and perseverance.
Definitely. A lot of fanfiction writers are attracted to the dynamic between Rock Lee and Sakura. Some stories might show how Rock Lee's determination affects Sakura, or how Sakura's medical skills come in handy when Rock Lee is injured during a fight. There's a whole range of ideas that writers use to create interesting fanfictions about them.