How to report on trending issues/concerns in tickets real-time?

Calling all Zendesk experts and admins! How have you been able to pick up and report on trending issues/concerns as an admin in Zendesk? I've ran reports, created customer triggers with tags, I've done everything. When support is slammed, how can we see in real time at any point what the biggest issues are without having to create new reports or reading through hundreds (thousands) of tickets? What has worked for you? I've used Zendesk to slack notifications, etc. but I just am not getting the real-time reporting I need for these without having to spend a ton of time in tickets. I'd love to be able to see what words are trending across tickets in relation to each other. Even more than that. What have you done to help your business?