So I’ve seen the TP-Link and GL.inet travel routers, and it looks like some of the GLs are/were built to run wrt firmwares. Stock TP firmwares have been pretty full features in my experience. I really want USB-C power. The GL wireguard support looks useful too, but it looks like their newer stuff is proprietary? Another want, not need, is 5 GHz band.
Does anyone have a favorite model or another board that can be flashed?
I use the GL.inet Shadow and have been happy with it. If you want 5Ghz and don’t mind that it’s a little larger (still small), I’d consider the Slate. It supports the latest version of OpenWRT. https://openwrt.org/toh/gl.inet/gl-ar750s
They include a custom GUI on top of OpenWRT, which I like. But LuCI is still there.