What to do if your Sentinel Data Connector shows as [DEPRECATED]

bseader thanks for your feedback. We are trying to improve the experience to that you can clearly see what connector replaces the deprecated ones. Please take a look at this article for more information on this: What's new in Microsoft Sentinel | Microsoft Learn

AMA doesn't have any cost associated with its use, same as MMA. You can install it on Azure Machines, but is also fully supported onprem. AMA is a superior agent that provides advanced features like more granular filtering, multi-homing, increased performance and others.