I'm mainly looking at Sony, Kenwood, and Pioneer. Also perhaps an OEM Delco radio from the same period as the truck if I can get one unlocked -- it won't have Bluetooth but would have a front Aux input and I can work with that. Crutchfield, Best Buy, and Walmart are pretty much out of stock on everything with a brand name. They blame it on Covid, of course; maybe that's legit.
I'd like to order from Crutchfield if I go with an aftermarket radio because they have the adapters to wire it in to the harness and retain most of the factory functions. With Delco, I shouldn't need any adapters but have to make sure I get a model that will play nice with my truck's computer and onboard diagnostics.