What schools of Feng Shui are there? What are their characteristics?

There are hundreds of schools of geomantic omen, which can be summarized into two categories in the final analysis. One is called "Situational School" which is mainly based on spatial layout, and the representative schools are crossing the road, Yin and Yang, Golden Lock and Yutong; One is mainly time series, which is called "Li Qi School", and the representative school is Jiugong Xing Fei.