[OpenWrt Wiki] Recommended routers
https://openwrt.org/toh/recommended_routersGood “budget” or “travel router” choice, as long as with at least 16 MB of flash and 128 MB or RAM. Mid-range, MIPS-based SoCs clock around 600 MHz in 2019. Many higher-performance devices clock around 750-775 MHz. MIPS-based SoCs clocked at 500 MHz or below are likely poor choices for purchase at this time.