Have a look at these:
bluesound, audiopro, bang-olufsen, denon.
Depending on which software is in use for streaming operations, you could also use ‘standard’ WiFi-enabled speakers like something from KEF (LS50) or
dynaudio.
Just from top of my head. Maybe someone else has a comprehensive liste at hand.
Soundboks 4 sync wirelessly with each other. They’re also battery driven and absurdly loud, so perfect for bringing outdoors or a dance party somewhere.
They just had a 30% sale for the holidays though, so might not be worth getting them at full price
