Where is the most Yang-like place in the geomantic geography of China?

A house, two bedrooms, a shady side and a sunny side. The sunny side is naturally sunny and warm, while the shady side is less sunny and cold. Now, if we regard the whole China as a house, with the Yangtze River as the boundary, it will be sunny in the south of the Yangtze River and cloudy in the north. Naturally, the south is sunny. That's what the ancients said when they sat facing south.