You will need a phone to set up 2-Step Verification at first, however these options are available afterwards.
You will then be prompted for your Crystal GSuite credentials. If other credentials are listed you will need to manually fill in your Crystal GSuite info.
Then proceed with your password
On your device that you set up from myaccount.google.com you should receive a one time code.
Enter the code and then be sure to allow the permissions in the following screen.