I have 2 bikes with Tektro CR720, with Koolstop (red all weather) brake pads. The CR720 are quick and easy to set up. You don't even have to be very precise about "toe in".

I have lots of other canti brakes in my dusty parts bin. Avid shorty 6 (loud squealers on the front!), IRD, old suntour and shimano. Someday I'll find a home for some these parts, somebody else's bike though.