1. Snack wholesale market: There are snack wholesale markets in major cities, such as North-South dry goods market and hardware market. In these markets, there are many vendors dealing in various brands of snack products, so they can go on field trips and discuss cooperation with merchants.

2. Snack manufacturers: If you want to get goods more directly, you can consider contacting the snack manufacturers to see if you can purchase snack products directly from the manufacturers.