1. Through friends and relatives and acquaintances: If there are friends and relatives or acquaintances have already in the factory canteen contracting experience, you can learn about the relevant situation from them, and seek their help and advice.

2. Search on business platforms and social media: You can search for relevant information on factory canteen contracting on business platforms such as Porky's, 58 Tongcheng, and YiDeng.com, or search for relevant keywords on social media to get the latest bidding information and contact information.

3. Direct contact with factories: You can try to contact the factories you want to contract directly, ask them if they have a need for cafeteria contracting, and submit your own application.

4. Find a professional catering management company: you can contact a professional catering management company, they may have more experience and resources that can help you find the right factory canteen contracting opportunity.