Well honestly, while the Jays have a few guys who could run more, their aren't the brightest bunch at picking their spots. Varsho is fast but he really gets terrible jumps imo, Whit is a nice combo of good jumps and good speed but tends to get a bit too aggressive in certain scenarios. Springer and KK both have injury concerns if you let them go too much.
Bo has good instincts but he's lost too much speed to be effective. Chapman might be good at it with his speed, but for that he'd have to get on base once in a while. Biggio is generally good at stealing but he's not really aggressive at trying it. he steals bases like he takes pitches; seemingly indifferent 90% of the time.
Vlad, Kirk, Belt, and espinal are all varying degree of slugs, and Jansen when healthy wont move the needle either.