I haven't seen anything like that nor is there any aftermarket for that type of thing. Youre going to be hard pressed to find someone who has done it currently. Sure it CAN be done if you know your suspension and geometry and know how to fab or use an old lifted frame but I can't see Vendor producing something that'll bolt on until Chevy makes a 4wd Off Road Blazer.
I'm working on this right now. I know it's not meant to be an off road vehicle necessarily, but I want another 2 or 3 inches at least for bigger tires. Having my redneck buddy come look at my 2019 2wd v6 this week to see what type of leveing kit we can fit. Keep posted if anyone finds anything before I do.