well, I suggest planet yoga or pure yoga.
planet yoga款式及開班數量較多, 有印度男導師同埋香港女導師, 可以根據自己既需要揀. 除yoga之外, 亦都有indian dance玩. 係causeway bay仲有一個專for女性既club. 價錢唔會好貴, <$500 okay, 如果你想玩sai三個clubs就要貴d. there's a club in tsim sha tsui too!
pure yoga款式就較少, 但係寧靜d, 可以係做yoga之前meditate. club既數目亦較多. 但價錢相對會貴多d.
其實你可以browse下佢地既website然後再打電話去book免費試做, 然後會有consultant同你傾d詳情, 同埋比番d意見你, like你適合做乜野class, 因為唔同既class有唔同既effect架!
planet yoga:
http://www.planetyoga.com.hk
pure yoga:
http://www.pure-yoga.com/en/hongkong
I hope I can help you! =))