Streaming Dac $5000-8000

A used Meitner MA3 will fit your price range and primary requirements.   It has integrated Roon streaming.

I've owned the Sim 380DSD which I really liked, the Bricasti M3 MDX which I liked but found it leaner/more-analytical than the older and less detailed SimAudio (but maybe more musical to my ears...).   I now have the MA3 and love its sound signature; it has lots of detail (but not super-detailed or analytical), never fatiguing, smooth with an almost liquid characteristic to vocals, strings, etc.

I recommend the HiFi Rose RS150B. Nice app, built like a tank, very nice sounding, very musical streaming, Also has the ability to install a ssd to hold ripped albums (which I have done, and alternate about 50/50 between rips and Quboz). I have had mine roughly a year. A plus is that they are quite responsive on software fixes, and the multitude of built in features are fun to play with. Mostly though, I recommend it on the quality of the streaming and the Rose Connect app (available for IoS, Android, PC/MAC), my brief experience with Roon picked it up immediately, but honestly I preferred the simplicity of the Rose Connect app. Uses the ESS Sabre Pro chipset.

MSB with renderer slide in

I'm using  Esoteric N05XD, it is stunning.