>>1815599Whitewater guy here.
When I think “canoeing”, I’m picturing lakes and tame rivers where you never really actually fall in, but want one just in case. If so, I’d highly recommend one of these or similar. It’s what I wear fishing in a dinghy at sea.
You could go hard the other way and get something like an HF Serpent- has integral harness for abseiling and rescue work. Out of production now though, not sure what a current equivalent is, but fucking awesome if you can find one.
Pic Serpent. In finding this, looks like Astral may have bought design and tweaked a bit.
Link inflatable.
https://www.hutchwilco.co.nz/products/inflatable-lifejackets-c1136/pro-spec-170n-inflatable-lifejacket/ 
