Einhell Router 4350410 TP-RO 18 Set Li BL - Solo w/o battery, w/o charger | Conrad.com
Amazon.com: Reyee WiFi 6 Router AX3200 Wireless Internet High Speed Smart Router with 8 Omnidirectional Antennas, Dual Band Gigabit Computer Router Mesh Support for Homes up to 3000 Sq. ft. - E5 : Electronics
How to connect multiple WiFi routers and Expand WiFi signal (Step by step) - YouTube