I’ve been driving for over 40 years in New England weather (except for my USAF years in North Dakota). The overwhelming majority of it has been in RWD vehicles. 25 of it was in promarily small Toyota pickups (with mostly RWD family vehicles). Some of these years were even on bias ply tires.
RWD is not as terrible in bad weather as reputed, as long as you remember a few basics.
(1) Get good snow tires, preferably on all four wheels, and always start the winter with at least 60% of the tread left. This may cost you a few bucks in replacing good carcasses now and then, but it’s worth every penney.
(2) put some weight in the rear, preferably a few hundred pounds. Secure it in some manner such that it does not fly free in the event of an accident. A plastic container filled with dry sand is an excellent way, and you can even keep a toy shovel just in case.
(3) it will “lose control” differently. Test it in an icy, empty parking lot when you can to get the feel of it.
(4) leave lots of room around you. This applies to FWD vehiicles also.
(5) plan ahead. Again, this applies to all vehicles.
(6) keep an overnight kit in the vehicle and if the weather gets too bad pull into a hotel.
(7) get a AAA card and a cell phone.
Follow these basic principles and you’ll be fine.