Sonos Move.
WiFi, AirPlay2, Bluetooth, can work as part of a Sonos network or separately, portable, 11 hours of battery life, water resistant, purported to have very respectable sound, voice assistants (Google or Alexa, alas no built-in support for Siri, but that’s as much Apple’s fault as Sonos’- also, the microphone can be muted, and won’t be listening unless you connect it to Google or Alexa), active/constant adaptation to the surrounding environment (similar to full-size HomePod, Sonos calls it TruePlay), and it connects to a positively ridiculous number of streaming services (something you’ll never get with HomePod).