The hotel needs some desktops. I don't know which brand is suitable. What brand of business desktop computer should I buy?

First of all, since you are a purchasing hotel. So it depends on your hotel budget. And after-sales is more critical. So to sum up, I suggest you choose brands with some local stores. Like Lenovo or Dell. This will make it easier to maintain the computer after it goes wrong. And the invoices are relatively complete. At the same time, because they sell a lot. The price and quality are good. I suggest you choose the above two brands.