Amazon.com: Smart WiFi Router, 2 in 1 4G 300Mbps High Speed Wireless Router with 2 Antennas and Network Cable, Wireless Internet Router for Streaming Gaming (US Plug) : Electronics
Amazon.com: Dbit N300 Easy Setup Wireless Wi-Fi Router Smart Home Internet Router - 2 x High Power Antennas, Supports Access Point, WISP, Up to 300Mbps (T1 Pro) : Electronics
GL.iNet Flint 2 (GL-MT6000) home and office router, 8-Stream Wi-Fi 6 technology,OpenWrt,2.5G Ethernet ports,Parental control - AliExpress
How to Connect Two Routers (with Pictures) - wikiHow