Roof Rack Platform installed!!!! After doing tons of research and internet surfing. I found a rack that worked for my new Tahoe. I found a post of the 2022 Chevy Tahoe Z71 Overlanding Concept.
https://gmauthority.com/blog/2021/11/2022-chevy-tahoe-z71-overlanding-concept-debuts-at-sema/
I saw that they used the OEM roof rails to hold up the tent. Then it got me thinking about getting a Rack Platform for 2021 Tahoe.
Rhino and Front Runner make a platform rack, but the said they are not compatible. Rhino you have to used their Backbone and they don't have to for the Tahoe/Yukon/Escalade. Yakima makes a platform that connects to your existing OEM rails. So I purchase the biggest one they had which was 84" by 49". Since the platform is 7 feet long, they require you to have 3 roof rack bars. Unfortunately they only sell cross bars in pairs, so I had to purchase 4 of them (I have 1 cross bar to sell, if someone wants to go this route). Also the YAKIMA platform has life time warranty, unlike Rhino and Front Runner, so also a plus. I picked up the folding Rhino Platform Ladder that is compatible with the YAKIMA one. There is some wind noise, so I am trying to find the best Wind Fairing that will work the best for me.
I will take more pictures this weekend, but here a couple quick pics. Taking a 700 mile road trip to the mountain during Xmas, so that will be the true test.