If you rent a supermarket, the premise is that your business scope cannot conflict with the business scope of the supermarket. For example, the household items and gifts you mentioned must be sold in the supermarket. As long as the supermarket doesn't have it, you can.

There are many ways: 1, simply rent the venue, pay rent, own staff, own counter. 2. Cooperate with the supermarket properly without paying rent. The supermarket will provide counters (but employees must be their own and will be managed), and a few points of the sales amount will be given to the supermarket. Of course, there are still some factors to consider: if the venue is at the cashier's desk, then your sales receipt can only rely on the cashier's desk in the supermarket. You can't collect your own goods, you can't make finished products and barcodes separately, and you can't use consumables in supermarkets, such as small tickets, shopping bags and even invoices. If the venue is outside the cashier, you can collect the money yourself. It is hard to say how much it will cost.

Supermarkets like to attract foreign investment most are those categories that are too dependent on personnel and difficult to operate at a loss: fresh food, cakes, small household appliances, cooked food, clothing, shoes and hats.