@zarf I think the best bang for your buck streamer, especially if you use ROON, is the Sonore OpticalRendu. I have owned about 5 or 6 of them. I sold a few to friends and setup their streaming. I currently have 2 of them with both the audiophile power supply and the much cheaper power supply from Sonore. Go for the cheaper power supply.
Since I owned the Lumin X1 I would also highly recommend the following Lumin streamer based on the X1, but this one has no DAC.
That and the Yggi+ OG maybe a future setup for me. It sounds different than the Sonore OpticalRendu. I call the Lumin a wild child streamer vs the refined sounding Sonore opticalRendu.
Another streamer that would be perfect if it had fibre optical, but maybe great nevertheless, could be the
I say potentially great because my now sold Playback Designs STREAM-IF was great using SPDIF output from an Ethernet input. The Aries S1 also takes in Ethernet unlike the Lumin and Sonore, which take in fibre.
I tended to stay away from Ethernet streaming but the Playback Designs steamer was so good using Ethernet.
BTW - I should add that the digital Leedh volume control on the Lumin is almost as good as the great volume control on the Benchmark LA4 preamp. I compared the 2 side-by-side. The difference is really a non-factor for almost everyone. Normally digital volume controls are really subpar compared to an analog preamp, especially the LA4.