Multiroom hardware

Hello. I would like to set up a multiroom audio system in my home. Here is the planned zone setup:

  • 2 zones with 2 speakers each
  • 2 zones with 4 speakers each
  • 1 zone with 5.1 speakers
  • 3 zones with 1 speaker each

I’m looking for a solution that allows centralized control from my iPhone or Android mobile phone. My TV should work with this system also. I want the flexibility to choose one or more zones to play music, either synchronized or independently. Additionally, it would be great, though not necessary, if Home Assistant could utilize this system for notifications.
Can you assist me in selecting the appropriate devices to make this system work?