Have a look at mikrotik devices. OpenWRT images are actually kinda rare for them, but not because they’re locked down (they’re not) but because the included Linux with proprietary userland is very, very, neat: Those things administer like ISP-grade routers (which mikrotik also sells), not servers. No shell access, so if you want to run other shit on there make sure that there’s an OpenWRT image, the hardware is definitely decent and well-priced.
Have a look at mikrotik devices. OpenWRT images are actually kinda rare for them, but not because they’re locked down (they’re not) but because the included Linux with proprietary userland is very, very, neat: Those things administer like ISP-grade routers (which mikrotik also sells), not servers. No shell access, so if you want to run other shit on there make sure that there’s an OpenWRT image, the hardware is definitely decent and well-priced.