Anyone know how to integrate Keap with Google analytics using tag manager
You might consider finding a Developer Partner to facilitate your integration. We have listings in the Marketplace that may help!
This guide will tell you everything you need to know about getting Google Analytics setup properly with Keap: Integrating Google Analytics With Keap/Infusionsoft | AnalyticsConnect.io
As for Google Tag Manager, using either that or the Google tag (gtag.js) isn’t much different as it’s just how you get the Google code on the page.