Smart bulbs and switches, as others have mentioned, is an entirely different conversation and one that has been discussed many times in the forums.
It used to be that there was no good answer, but fortunately in the last six months or so there are now a number of different choices. So start with the FAQ:
And then take a step back and consider the whole switches versus bulbs discussion:
Just remember that the older arguments about not having a light switch to use with a smart bulb no longer apply, which is why you should read the switch FAQ first.
