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The closest I've seen is SWYH ( Stream What You Hear ) which I haven't managed to get working.. yet (I haven't put much time in it).
It seems that swyh-rs (https://github.com/dheijl/swyh-rs) can stream to Sonos if you select "WAV" format, you could give it a try, but no guarantees.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.