Not only will the preferences vary from shooter to shooter, maybe also from gun to gun, and even for the same gun depending on whether it's being used for a target match where you're shooting 20 shots over the course of 2 hours versus hunting where the gun might stay loaded for a day without being fired.
For my last range outing, I lubed the patches with Hoppes 9 Plus. Cleanup was tap water, and Ballistol to lube before putting the gun away. As an extra precaution, the following morning I'll take the gun and run a patch through the barrel and verify that I didn't miss any crud. With the lubes I mentioned, I don't have to clean between shots, cleanup takes about 20 minutes, and the "morning after" patch has been coming out clean.
If you're just getting started in BP shooting, expect some trial and error before you find what works well for you. Other common patch lubes are Lehigh Valley Lube, Mr Flintlock, spit, and Ballistol/Water Mixture (usually in ratio of approximately 1/6). Alternative cleaning solutions are water with a drop of detergent, Moose Milk (homebrew usually 1 part Murphy's Oil Soap, 1 part alcohol, 5 to 10 parts water), Hoppes 9Plus, and Ballistol/Water (1:1).
Good luck.