Volume2 - Volume2 is an advanced Windows audio mixer, a complete replacement for the standard Volume Control.
Apple HomePod - The new home entertainment system by Apple
Sound Control - App-specific volume control
Google Home - Set up, manage, and control your Chromecast, Chromecast Audio and Google Home devices.
Power mixer - Power Mixer is a complete Windows volume control replacement.
Sonos One - A self-contained, Alexa-connected speaker from Sonos