A second vote for Renaissance wax. Doubly so if you have guns you leave sit for extended periods.
The problem with Ren wax is getting into corners and it gets stuck in places that it’s hard to wipe off. That has been my experience. I use to use it for knives but was never happy with it. I just use Break free collector for knives and swords and it’s works perfectly and never gums up. Now for firearms I have been using Rig grease for decades and never had an issue with rust. Even stored a Marlin model 60 under my bed at my parents house unmolested for 25 years and it still worked perfectly. No rust and the grease was still not gummy and just like the day I placed it. Pretty impressive stuff if you ask me