Linksys Velop

From $229 linksys.com

The Velop is a good introduction to mesh networking for larger homes, or homes with thick walls that block the Wi-Fi signal. There are several models in the Velop range, with prices starting at under $229 for a twin-pack with dual–band 802.11ac Wi-Fi, or you can step up to a faster tri–band system for around $439. The Linksys app works well too, making it easy to set up your mesh network, and it provides good parental controls and other features.