Get SPO sites without users in the site

Question

Dear Team,

 

How can we get  SPO sites list without no users in the site. 

Please suggest is there any PowerShell script to get this list for all Sites and sub-sites

 

For example, I have a site with the name "SPO" but users are not there in the site, when i run the PowerShell script i want to get all sites with empty users  

 

Best regards