The following are some countries and regions with good sales on AliExpress:

1. Russia: Russia is an important market for AliExpress because the country's consumers have a high demand for Chinese goods. The Russian market has a high demand for electronic products, clothing, accessories and other goods.

2. Spain: Spain is a popular market for AliExpress, especially for fashion, home furnishings, sports equipment and other goods.

3. Poland: The Polish market has a high demand for mobile phone accessories, home appliances, beauty products, etc., and AliExpress's sales in the country are also relatively good.

4. Brazil: Brazil is one of the largest economies in South America, with a high demand for clothing, footwear, electronics, etc., so sales in the Brazilian market are also relatively good.

5. Thailand: Thailand has a high demand for home furnishings, accessories, beauty products, etc., and AliExpress also has good sales opportunities in the country.

It should be noted that the sales situation on AliExpress varies depending on the product and market. Certain products may be more popular in a particular country or region, so it is important to understand the needs and trends of your target market.

As for the number of orders per day, the specific number will vary depending on various factors, such as product popularity, promotional activities, seasonal changes in the market, etc. It is impossible to provide an exact number because each merchant's sales situation is different.