Hi Daniel,
You could purchase PCs from the manufacturer with Windows 10/11 Pro embedded on the machine.
From here, you can then set up Microsoft Autopilot/Intune to manage and deploy your devices. If you use Autopilot you can have the devices automatically join Azure AD and mange the devices going forward (apps, OS, etc).
Please read about Autopilot further (or you can contact a Microsoft Partner to assist):
Windows Autopilot documentation
https://learn.microsoft.com/en-us/mem/autopilot/
Microsoft Intune securely manages identities, manages apps, and manages devices
https://learn.microsoft.com/en-us/mem/intune/fundamentals/what-is-intune
If this is helpful please accept answer.