It'll need more licensing but you can use VRNI for what you're trying to accomplish.
https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/products/vrealize/vmw-vrni-solutio...
You add your NSX Managers + vCenters to the VRNI and it gathers the flow information much the same way as nsx intelligence. It'll then report back to you what rules are being hit based on how you build the search criteria. It requires two VMs to function
