BTW, all certified Z wave devices are listed on the official Z wave alliance website. Note, however, that a device being certified doesn’t mean it’s yet on the market, sometimes there’s a lag of 6 to 8 months from certification to full production. But if you’re looking for a particular type of device, it can be a good place to start.
I like the Leviton switches, although if I were buying today I would buy a Z-Wave Plus switch. The LEviton switches are nice, push it once the light goes on, and again it goes off. If it’s a dimmer switch then there is a rocker for brighter / dimmer. I probably have 15 of them, plus three scene controllers.