How to Use a Router as a Repeater to Extend your Wi-Fi - Tech Advisor
Amazon.com: NETGEAR Wi-Fi Range Extender EX6120 - Coverage Up to 1500 Sq Ft and 25 Devices with AC1200 Dual Band Wireless Signal Booster & Repeater (Up to 1200Mbps Speed), and Compact Wall
Amazon.com: NETGEAR WiFi Mesh Range Extender EX6100 - Coverage up to 1000 sq.ft. and 15 devices with AC750 Dual Band Wireless Signal Booster & Repeater (up to 750Mbps speed), plus Mesh Smart