$1000 (used ok) Streamer Dac recommendation please

There are few streamer DACs until you get to big bucks. There are many many cheap ones with even cheaper built in DACs.

No recommendations in your target range. The Bluesound is the perfect starter. It will play most anything.

Best deal I found for quality streaming for around a grand is the ProJect Stream Box S2 Ultra combined with the Pro-Ject Pre Box S2 Digital (DAC/Pre).  These need to be found pre-owned to be under a grand, otherwise they would cost about $1400 new.  I use these in my office system with great results. Best of luck in your search.

Chromecast Audio, cheap and easy pair with a MHDT DAC

agree with fuzztone that bluesound node (current or 2i) is a very good starter streamer/dac - streamer is quite good, dac is decent, but can certainly be bettered in terms of sound quality

others to consider used are innuos zen mini and auralic aries mini, both excellent values for the money for one box streamer+dac, cambridge makes a decent one too