There’s no one right answer here: one person’s “ relatively affordable“ is another person’s “outrageously expensive.“ 
And features vary In importance.
Have you had a chance to look at the device class features FAQ? Most of those will be available in Canada, and it will give you a better idea of what some of the options will be:
As far as bulbs versus switches, there are literally dozens of threads on that in the forums as The question comes up a couple of times a month. Again, different things work for different people or even in different places in the home. While switches are often less expensive, now that there are widely available $15 lightbulbs, that’s no longer true.
People generally choose bulbs for one of the following reasons:
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They want the colour changing features
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They want to create Lighting zones in a room where everything runs off of one light switch, such as a kitchen or basement.
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they want a no-wiring solution
This is why quite a few people, myself included, have some smart bulbs for specific uses and switches everywhere else. 