Look for Soundcraft, A&H...but also, look under 'mixing console' or 'mixing desk' for search terms. The things that are out there will make your brain implode...for example, there's a listing for an Amek 501 out in Hemet, in your part of the world, 40x8. Granted, it has four strips with repairable issues, but this thing is $2500. A couple of decades back, this would've set you back a few tens of thousands of bucks!
The issue is twofold: in studio settings, so many people have shifted to mixing 'in the box' that proper desks don't get used for typical commercial production these days. And live, road companies and venues are dumping analog desks in favor of smaller digital ones. And this...is dumb. Well, maybe not dumb per se, but the end-result is that devices that cost many thousands and which would've been out of reach for most individual users are now stoopid-cheap. And for electronic music production, I still think that a mixing desk is awfully useful; sure, anyone can mix in their computer, but it loses something in that you can't 'get at' the sound when tracking or mixing and work the controls in real-time as the noises fly by. In a way, it's the selfsame argument in favor of modular synthesizers, just applicable to different gear. So nowadays, you can get a real, full-scale DESK for a few thou at worst.
Granted, then you have to figure out how to use it. But that's not that difficult, no matter how intimidating a large-scale mixer looks. Also, big PA desks can work in a studio environment (if you have space for them!) even if they don't have the ability to 'flip' channel inputs. Just set them up as 'split' desks, and remember which strips are your DAW returns.
I feel as if I may have opened yet another can of worms...