If you have a Google Search Console account for your website, here is how you can give permissions to someone else, for example to finish the setup on the website.

1. Go to Google Search Console

2. Go to settings, then click on the username

3. Click on the “Add User” button

4. Insert the email addresse (should be a Google account) of the person you invite and give the appropriate level of permission

Once this is done, the person you invited will receive an email with a link to accept the invitation, then you are all set!