I haven't seen anyone suggest this yet, so I'll toss it into the mix.
I've lived in coastal marshes and high mountain deserts recently. The shaving zone has experienced gross humidity including mold and mildewed cloth. My razors have had the benefit of exposure to all sorts of environments.
The variable that I think will help is Hot Water. At the very last during cleanup, I rinse the blade in hot water. These are not massive blades but the whole blade warms. I wipe everything down with a dry towel and put the razor down for the next shave. Nothing else special, no oil, no treatment. What I think is happening is the residual heat from the hot water causes any leftover water to evaporate leaving a dry blade. My experience is no rust. Now one of my stored razors gets a light wipe with G96 or Gunzilla (because the G96 smells great and these are what I have on hand.) That's it.
In all my fiddling with steel over the years, I have noticed that human beings express differences in the acidity of their skin oils. A polished knife on a table for sale will show differences in fingerprints as they have been handled. I believe that some folks can touch a blade and leave a rusty fingerprint that shows in minutes where others are easily wiped away with no appreciable marks on steel.
Renwax equals Renaissance Wax. It works. Here's a link with a lot of education. https://www.theruststore.com/Renaiss...4aArTcEALw_wcB
Maybe a slightly better wax: Walker Wax. Made by a fellow out of Eugene OR. I've had Renwax seem to gum up with long storage. It's not miserable but Walker Wax doesn't seem to do that.
Really, any good barrier to the elements that cause oxidation will do.
Lastly, as all the other good advice suggests, get over the heartbreak and learn to accommodate chaos with protective rituals. Good steel rusts. Even so-called stain resistant steels will rust if given the right conditions. To keep myself from heartbreak, I've patinated blades deliberately to prevent rust formation. But then, they are not all nice and shiny objects any longer. It comes down to what you can live with.
So far the only steel I know of that won't rust is H-1. I'm testing some knives with that steel. It's a great knife steel. I'm not sure that it will make a great razor steel however.