As a beginner, let's start with elementary yoga written by others. However, Huilan's is a basic human study. In particular, her books are very good. )
Flowing yoga is also good, and it is also an alternative way of Hada posture. The rhythm is very fast, and the movements are one after another.
I suggest that both styles are useful at the same time. There is no need to distinguish them. Unless, after you are familiar with them, you can feel them with your personal physical strength and then choose the one that suits you best.