It's good for the female coach to use the name of Cui Hua as her stage name, because Cui Hua expressed her beauty like a flower and showed her beauty. A female yoga instructor can take the stage name Chu Yachu, which means clear, neat and lush. The essence of yoga comes from all things in nature, and the lush forest is also the source of yoga, so Chu is a very good artistic term for a yoga instructor.
If you are a female yoga instructor, you'd better choose a catchy and memorable stage name. I think it can be called Qingqing. Or light light blue, or Xiao Fang, or Xiaohua, and so on. These names are easy to remember, especially the overlapping words, which can leave a very deep impression on people.
Lisa and Linda, they are all fine. They are very nice.