For a 28-story building, which floors are the best (from the perspective of geomantic omen, thank you)

My experience in buying a building and choosing a floor is that the grounding gas on the floor is low, and generally the sixth floor and the eighth floor are better. Higher:16th floor is better, and19th floor is better. Because people also like lucky numbers, they will sell well in the future; The same height is 26 stories. The higher the price, the more expensive it is, and we should also consider the economy, whether it is self-occupation or investment.