Amazon.co.jp: WiiM Mini AirPlay 2 Receiver Adapter, WiFi Multi-Room Streamer and Transmitter, Works with Alexa and Siri, Aux and SPDIF Outputs, Stream High-Resolution Audio from Spotify, Amazon Music, TIDAL and More :
IEAST olio For DLNA Airplay 2 Adapter 2.4G/5G Wireless Wifi Bluetooth5.0 Music Audio MultiRoom Stream Receiver For Spotify alexa - AliExpress
Add AirPlay to Your Classic Stereo with an Old Apple TV - TidBITS