First, big intermediary companies like Chain Home and Zhongyuan have high brand awareness; The other is some local intermediary companies, which have been operating in the local area for many years and need not be poor by big companies. Instead, the service will be better. Buying a house is not buying clothes, and there should be no "brand myth"; Third, you can use sesame seeds to find a house and check the brokers with high credibility of each intermediary. After all, it is not an intermediary company that buys you a house, but an intermediary.