I need some advice before I fall into the rabbit hole. I have a few smart devices at home, Samsung TVs, Ecobee, LG washer n dryer, fridge and some smart switches. I would like to add some sensor and install some smart switches.

I prefer like to have a central repository to control all the devices.

Most of the devices if not all are connected via wifi through an app or smarthing.

What other hardware would you advice I buy and your setup recommention. BTW, I already ordered the Zigbee ubs from Amamzon.