Amplifier with Power Control and Line In

I am looking for an amplifier to connect to Volumio on a Raspberry Pi. I was looking into something like an SMSL AD18, which would have sufficient power, however, it does not seem to be possible to switch it on automatically when playing music. My goal is to use it similar so a Sonos Speaker - I want to turn on music and then change volume, without having to turn on a separate amplifier. Because it should also connect to my PC, it needs to have an analog input as well.

Do you have any recommendations on which amplifier to use?

Buy a Logitech harmony and make activities, really makes life easier and you can choose any amp you want, as long it has remote control