1, you can go to the local farmers' market, where many vegetable wholesalers offer all kinds of vegetables at relatively reasonable prices and good quality.

2. Some cities will have special vegetable wholesale markets, and you can go to these markets to find suppliers. Direct contact and negotiation with suppliers in the wholesale market to understand the product type, price and delivery method.

3. There are many specialized vegetable supply websites, and suppliers can be found on these platforms. These platforms provide supplier information and product introductions, and find suppliers that meet the needs through screening and comparison.