I have a van and I don't know what business to do.

The van can pull people, goods and stalls. If you pull people, you can go to places where the traffic is not convenient. These places should generally be in demand. There are two options for pulling goods. One is to go directly to the local logistics park or express delivery company to see if the driver needs to deliver the van, and the other is to find the goods by yourself, go to some local professional markets and wholesale markets, or rent a house to find the goods centrally. If the landlord's place has similar goods, the stall depends on whether the landlord has a good supply. You can also set up stalls in some places with heavy traffic.