What do you think about IOT in business and residential situations? It can be helpful but may be insecure.
Most routers have a guest channel that be used to segment the wireless devices such as Smartplugs that use wi-fi.
Use of a VLAN or virtual LAN, may segment wired IOT activity. What is your long term plan?
A newer router such as MESH type has promise to help segregate guest and this IOT traffic.
Perhaps a Prosumer router such as Edgerouter Lite which allows 2 separate LAN’s, one for personal and one for IoT devices would help your goal of separation of the streams.