I recommend the Lutron Caseta line of products.
With these switches, you never have to worry about someone accidently turning off the Alexa light. Also, if the internet goes out, these great dimmers and switches just work. They have dimmers, regular on/off switches and lamp dimmers.
If you want to control the lights with your device, or with Alexa, the Kit is required, which comes with the hub. Plug the hub into your router, install the Caseta app on your device and follow the simple instructions. Ta’da’
You can thank me later.