If you want to get into streaming at nominal cost, check out the WiiM Mini (about $100) or the WiiM Pro (about $150) -- both support Qobuz and other streaming services, are very easy to set up and have a good app for your phone for selecting and controlling music. The Mini is optical-out only but the Pro does both optical and coax out (no USB out on either.) Amazon has both available. (There is also a Pro Plus but you're paying for a nicer built-in DAC which you said you don't need.)
If you decide you need something fancier after that you can upgrade to something audiophile-approved without having spent a bunch of money on round one. (I use a Mini with a bluetooth speaker in my office for radio and background music, so there is always another use. )
The Raspberry Pi approach is also another alternative (and will do USB out) and can be done for $100 or so, but takes a bit more of a DIY approach.