Hello
Thank you for your question and reaching out.
As you have Windows Server 2019 Standard you can host up to 4 VMs using Hyper-V role.
It is also to Introduce Backup DC or ADC incase if the Primary DC goes Down.
You can also use Print Services , DNS, DHCP role in different VM.
Yes you can also use VMware Workstation 17 If you have valid licenses and as you have small Network.
https://aka.ms/WindowsServerLicensingGuide
https://www.microsoft.com/licensing/docs/view/Windows-Server
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