I just stumbled across this yesterday, and it is by far the most comprehensive and intelligent look at the topic that I have seen. 46 commonly used products that were tested for corrosion inhibition (among other things). The thread is called "Results of gun care product evaluation", tests done by a guy who just wanted to know. Definitely worth a look but it's a long read.
h ttps://www.shotgunworld.com/threads/results-of-gun-care-product-evaluation.398836/
TL/DR: For corrosion inhibition alone (and by a very large margin), the best of the "common" products tested were "Hornady One Shot Gun Cleaner and Lube" and "WD-40 Specialist Corrosion Inhibitor" (and maybe "Frog Lube").