Authorized acquisition methods include:
(formerly VLSC) to get the version that is pre-configured for volume activation. Microsoft Learn Log in to the Microsoft 365 Admin Center Navigate to Your products Volume licensing Downloads and Keys windows server 2019 kms iso link
Windows Server 2019 remains a staple for hybrid-cloud environments. Here is a brief review of its standing today: Windows Server 2019 | Microsoft Evaluation Center windows server 2019 kms iso link
You can convert an evaluation version to a full version later using specific DISM commands. windows server 2019 kms iso link