1. Search for the other party's phone number in WeChat: Open the WeChat application and enter the other party's phone number in the search field to see if you can find the corresponding WeChat account.
2. Search through the Internet: Use a search engine, enter the phone number of the other party to search, and see if you can find the WeChat account information related to the phone number.
3. Through other social media: If you know the user name of the other party on other social media platforms, you can try to search for the user name on WeChat to see if you can find the corresponding WeChat account.
4. Ask the other party for a WeChat account: If the above methods can't find the other party's WeChat account, you can contact the other party directly by phone or other means and politely ask if you can provide a WeChat account.
It should be noted that when using the above methods, please abide by the relevant regulations and laws and regulations of social media to ensure that your behavior is legal and compliant. In addition, before any communication between the two parties, please make sure that you have obtained the consent of the other party.