Thank you so much to everyone who responded.
So far, we have the following suggestions:
NetApp OnCommand Unified Manager 7.2
OnCommand Performance Manager (onPrem)
ONTAP Analytics and Telemetry Services (OATS - OffPrem [AWS])
The only tool I currently am aware we have is Oncommand System Manager 3.1.2, which doesn't have any reporting of capacity and performance capability.
Which of the listed solutions is the best choice? Are all free tools?