Controller for volume

Do you have any suggestions for physical volume control devices which works well with Google Chromecast audio and Homeassistant?

For example I have Hue switch, could its brightness buttons used to control Chromecast audio volume? Or is there any other good ideas what I can use?

The idea is that I could have in all my rooms these buttons/knobs (wifi or like that) and I could use it to control to volume of all of my Chromecast audio devices.