Be aware that there is no such thing as a “stable dvb” under CoreELEC. I use mecool kt1 dvb-t2/c and it works. I have no issues with it but I use it currently only as a tvheadend server (not connected to hdmi screen). Here are instructions how to install ce to it (soldering required) Mecool KT1 S905X4 - #7 by rozpruwacz. There is also kt2 but i dont have it and i dont know if it will work