TP-Link Smart Wi-Fi Light Switch for 3-Way Lighting — No Hub Required, Works with Alexa and Google Assistant (HS210 KIT) If you are looking at this, it is very likely that already have some kind of smart switch at home and it is more likely that they are from TP-Link as well. I purchased the HS200 and HS210 and this review is for HS210.
https://www.amazon.com/TP-Link-Switch-HS210-KIT-1-Pack/dp/B07724HNTX