I installed my third—and final, goshdarnit—iteration of a bed rack. It's from Xtrusion Overland, and is constructed from 15 series aluminum extrusion. This makes it super customizable, and I'll be adding other goodies to it over time. I've got the parts to add an additional set of side bars to each side to hold more stuff, and the bars can be set at any height along th vertical supports.
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You can get these in multiple configurations: Different heights, lengths, black or silver (I kinda which I had gone for silver), four or six vertical supports, different ways of mounting (mine works with my Retrax XR retractable cover). Mine is 66" long, 18" heigh, which places it about 5" below the top of the cab.
I really want to find a way to add/relocate the camera for the digital rearview mirror to the back of the rack, so I've got an unobstructed view of what's behind me. The rack partially covers the CHMSL camera, and went my rooftop tent is mounted, the camera (and brake light) will be completely blocked. I have a 2021 Ram; 2022 added an option for trailer surround view cameras, which would make this easy provided you can find the parts. I know I can use a Fakra cable to extend the camera, but I still have to work out how to route the cable, what camera to use, and how to make the camera waterproof.
If you've got ideas or experience on relocating the CHMSL camera (perhaps for a topper), please let me know.
The second photo, below, is my slightly tweaked install from the first photo. I moved the whole rack about 3-4 inches back (toward the tailgate), and relocated the grab handles.
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