Again, I agree that Hoppes #9 Plus and any of the good, modern gun oils is the way to go. I've been using Hoppes as a patch lube and sometimes in the cleaning process for over two years. The longer I use it the more I like it. If you consider all the many excellent, modern gun oils available, most any choice will be a good one.
Some like to use "old timey" sounding preservatives such as bear grease, hog lard, etc. Though such lubes are reported to be very satisfactory, the only advantage I see is that they are way, way better than the costly "bore butters" & stuff. Stay away from those. Technology has given us a much better way of protecting our valuable arms.