Best answer by Stanley_4
For the wider sound you might consider a new "room" with two stereo paired Sonos Ones or if you don't need the new features on them Play 1s in a stereo pair and set up in conventional left-right stereo positions.
Another option would be to combine your Beam and a pair of Play 1s into a 5.0 surround setup. That will sound nice for 5.1 sources and if you set the Play 1s to "full mode" for music it will make maximum use of them. Trying both setups is fairly painless.