I want to know the other Icloud email addresses

See the article About your Apple ID email addresses - Apple Support

Read the section - Additional email addresses

Below the primary Apple ID additional iCloud mail address that is also an Apple ID address can be found , using a web browser .

Hello Jerryslife,

It looks like you may have forgotten your Apple ID or iCloud information. We can also see you joined the Apple Support Communities from a great knowledge base: If you forgot your Apple ID email address or phone number - Apple Support.

Did you follow the steps offered on that page to help you with locating your Apple ID information? It offers great steps to take to try to locate your Apple ID information. If you have followed those steps and are still encountering an issue with locating your Apple ID, you may want to create a new Apple ID, or reach out to the support number that is most local to your region to further assist with this Apple ID issue. You can find that number here: Contact Apple for support and service - Apple Support.

Kind regards!