CST has a Coilover kit out.
https://cstsuspension.com/2019-1500-2wd-p-u/385-csk-g52-1-2019-gm-1500-2-4wd-stage-1-system.html
I asked them about AT4/TB? They said if you add just coilovers it will raise the front by 1.5", which would level the AT4/TB.
https://cstsuspension.com/2019-1500-2wd-p-u/380-dirt-series-25-coil-overs-2019-gm-1500-2-4wd-1-35.html
On my 2013 GMC 1500 I run CST coilover with 1" blocks in back. No problems with over 20,000 miles, ride is way better than stock. On the dirt it will swallow up high speed bumps, on the road it will rally corners.
When I get my AT4 i'm going CST coilovers with 34/35 BFG KO2. Now Fuel just needs to come out with wheels that will clear calipers.