To find a good source of goods on Alibaba, you can follow the following steps:

1. Clarify the product type and find high-quality suppliers;

2. Screen suppliers and pay attention to their company qualifications, credibility, transaction records and other information;

3. Communicate with suppliers to understand product quality, price, after-sales and other information;

4. Conduct on-site inspections of suppliers to confirm their strength and stability;

5. Sign a purchase contract to clarify details such as delivery time and quality to ensure smooth transactions.

In addition, you can also find a good source of goods through Alibaba's procurement services, online negotiations, exhibitions and procurement activities. Pay attention to investing time and energy, conducting multiple inspections and comparisons, and being cautious and rational to obtain high-quality products and services.