Unpair the FIVE’s, then add them to a SONOS soundbar. Here are some further considerations. By the way, 5.1 is not ATMOS.

Top of the line setup would be an Arc and a pair of Era 300s as surrounds, a Sub or mini-Sub for the .1 channel. A Beam Gen 2 would be the lowest soundbar Atmos option.

You could use the Fives (or is it Play 5s) as surrounds but they don’t do Atmos like the 300s do. You might consider keeping them for use as a Stereo Pair for music or as single speakers in other rooms.