Hello, thank you for reaching out to Microsoft Q&A.
Just to confirm, you’re trying to reset your Microsoft account password, but the verification code email is not being delivered to your alternate email address. Is that correct?
Did you check your Junk or Spam folders to see if the verification email from Microsoft accidentally ended up there?
Do you have any other security verification methods, such as a phone number or Microsoft Authenticator, to confirm your identity?
If this is a personal account, please use the following link to reset the password:
https://account.live.com/ResetPassword.aspx
Open an incognito tab and paste the above link.
Try connecting your PC to a different Wi-Fi network, such as a mobile hotspot, and try resetting your password.
See if you receive the verification code at your alternate address. If you still do not receive the code, wait 24 hours before signing in again. Sometimes waiting a day can be enough to remove a block. Don't make lots of repeated attempts, as this may reset the time lock.
For reference, see
Troubleshoot Microsoft account verification code issues article for reference.