Raspberry Pi 4 as LAN-Router - Installing and Using OpenWrt - OpenWrt Forum
Amazon.com: Seeed Studio Mini Router with Raspberry Pi CM4 4GB RAM/32GB eMMC and a Case, Dual Gigabit Ethernet NICs, OpenWrt Pre-Installed, I/O Peripherals with Aluminum Heatsink for Camera Projects. : Electronics
Raspberry Pi x OpenWRT Travel Router – Tristam
Raspberry Pi 4 as a Home Router - OpenWRT + AdGuard Home – Gateway IT
OpenWRT Router on Orange Pi R1 with an additional Raspberry Pi Zero for general use – embedded-ideas.de
Free IoT Security Platform Runs on OpenWrt Routers and the Raspberry Pi - Circuit Cellar
OpenWrt on Raspberry Pi: Use your Pi as a router (Tutorial) – RaspberryTips