Spring pike....lots of guys do well in the shadow of downtown TO.
Could always take up Carp fishing....20 lbs is a small one....
I would say though, if you want to catch a salmon, stop driving around and focus on one spot. All you'll end up doing is beating your confidence to a pulp, while hearing about how people were catching at a spot you skipped out on, or got skunked at the night before. Pick one pier, hit it from 11pm-3am, and keep a glowing spoon in the water for as long as you can. Go for a couple weeks and you'll learn a few things.