There are many ways to find customers online for foreign trade. Here are some suggestions:

1. Search engine: Use search engines such as Google and Yahoo to enter keywords to find information about potential customers.

2. Social media: Use social media platforms such as LinkedIn and Facebook to join relevant industry groups and establish connections with potential customers.

3. Industry websites: Publish product information on relevant industry websites to attract the attention of potential customers.

4. E-commerce platforms: Open stores or publish product information on e-commerce platforms such as Amazon and eBay to attract potential customers to buy.

5. Customs data: Use customs data to find potential customers' purchasing records and supplier information.

6. Participate in exhibitions: Participate in industry exhibitions to communicate face-to-face with potential customers and understand market needs and trends.

7. Email marketing: Send emails to potential customers to introduce product features and advantages to attract customer attention.

8. Word-of-mouth marketing: attract more potential customers through customer praise and recommendations.

9. Build a website: build a company website to showcase product features and advantages, increase brand awareness and exposure.

10. Participate in online seminars: participate in industry online seminars to understand industry dynamics and trends and establish connections with potential customers. In short, finding customers online for foreign trade requires multi-channel and multi-angle publicity and promotion of products, while constantly improving one's professional knowledge and skills to enhance one's competitiveness in the international market.