WiiM's Mini and Pro are the Chromecast Audio's real replacement - The Verge
Amazon.com: WiiM Pro AirPlay 2 Receiver, Chromecast Audio, WiFi Multiroom Streamer, Compatible with Alexa, Siri and Google Assistant, Stream Hi-Res Audio from Spotify, Amazon Music, Tidal and More : Electronics
Cambridge Audio CXN (V2) review: an excellent, ever-evolving streamer | What Hi-Fi?
Review and Measurements of Chromecast Audio Digital Output | Audio Science Review (ASR) Forum
Soundline Audio - An update for Roon released yesterday. You can now use Google ChromeCast as a display device to display what is currently playing on your Roon Endpoint. (Antipodes, Meridian, Bluesound,