If you already have DNA Center and are looking for Assurance use cases, I highly suggest adding wireless. It's an easy lift and can provide a lot of insight into potential wireless problems lurking in your environment. To add wireless, you'll just need to add your WLC into your DNAC inventory and within 30 mins you should start seeing Assurance data populate. Just a couple of warnings: When a WLC is added to DNAC, it pulls in every AP associated to that controller. From a licensing perspective, each AP requires a DNA license so there's some cost associated with it. For that matter, any devices you want to add to Assurance will require a DNA license.
Besides wired/wireless assurance, you can use SWIM for automated software management, the network design tabs to synchronize cli/snmp/aaa/dns/ntp/qos configs across your network, and templates for further day-N automation to automatically provision the rest of the device configs.
