How about the Curtiss C-46 Commando?
Ah yes, of course, I used to like the C-46. As a spotter, I went for years without seeing one, although there were a few around. Finally started seeing the N-reg examples used by Lufthansa for freight services into Heathrow.
Although for next week, maybe a Fred Olsen one - as an example of what happens when you put a pretty colour scheme on a brute of an aircraft.