homeassistant

I have been using the Kasa (TP-Link) branded smart switches around my house, but now that I have a few third reality zigbee sensors for my doors and so on, I am seeing the value of using more outlets/switches that act as zigbee repeaters. Do any of you have pretty reasonable (and cheapish) smart light switches or outlets I can invest in? The Amazon offerings are in the $50 each one which is pretty steep, though I guess I could just do one each room and do the rest with Kasa stuff.

I would like to expand the zigbee mesh network so I can use the devices where I actually want them without using smart outlet devices plugged into real outlets all over the place. If there was something that was $20 or less each item that would be super excellent. The wife and I plan to move in the not too distant future and I'd like to replace the "in the wall" stuff so that HA works throughout the house and I don't have plugs / dongles / wall warts all over the place.

Thanks in advance for any insight!