My Suggestion is
Do your research. you want a device based on the Open Firmware, you want a device that supports the software on GitHub.
Most of the devices are made in China.
The prices are all over the map, research down to who actually manufactures the device.
This takes time, but with internet access you can find and drill down to find what you want and are willing to accept.
OR
Purchase one from Amazon with a return ability. Amazon is good this way. while this is slightly more expensive but gives you time with the actual device to decide to keep or return.
VE6LX