There are plenty of places to look for C&R guns besides online retailers or GunBroker, or spending hours scouring local pawn shops, gun stores, and gun shows.
To put this in perspective, my collection consists of over three dozen military surplus rifles. Of those, only 6 of them are from online retailers, 1 is from the CMP, 1 is from Gunbroker, and 5 are from local gun shops and pawn shops. That's 13 from those sources. The other 25+, or about twice as many, have all been acquired from the Classifieds sections of various military surplus forums, including the C&R EE forum of this very website, as well as from local private sales through Armslist. All within the past 10 years.
As stated, if you can't find any C&R guns for sale, you aren't looking very hard. Even if the distributors are all sold out, and you don't have time to drive around to all the local gun shops, there are tons of them available from other sources.
And unlike buying a luck-of-the-draw generic rifle from a pile of them at a distributor and just crossing your fingers and hoping for the best, when buying from sources like private sales and online WTS ads, you know ahead of time exactly what you're getting and can hunt around for exactly what you want.