HAOS best Domotic bus ALTERNATIVE to knx

Configuration
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Considering HOASS as a supervisor, I need to design the MAIN BUS infrastructure for the house.

I see that knx DOMOTIC bus is strongly supported. This help a lot in the commercial choice of switches and devices.

Are there other WELL supported domotic commercial bus (for switches, loads, …) , that should be considered as an alternative to knx for an hoass integration ?

Thanks in advance,
Giuliano

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HAOS. Home Assistant Operating System.

HOASS could be construed to mean something altogether entirely different and inappropriate for this forum.