There are a TON of devices that work with ST. It really all depends on what “look” you are going for in regards to switches.
I typically recommend the GE Z-Wave Plus Switches and Dimmers as they run locally, are affordable and pretty much well work great. They also have extra features that come in handy such as double tap which is like getting a free button do assign to other HA task.
For motions and contacts, I typically recommend IRIS motions and dimmers. They are fuss free, run local and have solid battery life.
I DO NOT RECOMMEND SMART BULBS unless you do not have a means of installing a Smart Switch that typically need a neutral wire in the electrical box to work.
Therms, you can go with a simple Honeywell Z-Wave or go all out on something like the Ecobee.
Finally, for rules I recommend using webCoRE to cook up your own rules and SmartLighting for quick and simple automations as SmartLighting runs locally.
Take you time, do your research and shop wisely in order to avoid buying redundant devices such as temp sensors.
One last thing, Amazon Alexa devices ROCK! Control you HA with Voice. Too Cool! Only $50 for a Dot and even cheaper if you find them on sale.