I would suggest implementing Windows Autopilot so you don't have to create a Microsoft Account. Make sure to review the requirements.
For your new devices, make sure to contact your supplier, otherwise, you can just generate the HWID before deploying your laptops (manual way - but still saves you a lot of time compared to having on-prem AD, SCCM, and imaging server).
https://learn.microsoft.com/en-us/windows/deployment/windows-autopilot/windows-autopilot