@jerryg123 -- do you have a specific price point in mind? I currently have three streamers in my systems. Bluesound Node 2i (listed for sale on this site), Sonore opticalRendu, and Innuos Zenith MK3. I also did in-home auditions of the following models in the last 36 months: Lumin U1 Mini (with Sbooster LPS), Lumin U1, Innuos Zen Mini, Sonore MicroRendu, and Cambridge Audio CXN v2.
I think the key question you should ask yourself is what kind of sound signature you’re after. For example my goal, after listening to a friend’s very well sorted vinyl rig, since last year has been to get closer to the analog sound but without the associated hassles.
If your budget is under $2k then I can heartily recommend Sonore opticalRendu. It was a big step up from Node 2i. The fiber optics conversion allows the noise floor to reduce considerably and lets you hear more into your music. I still use this streamer in my second system and feel that it is great value for the money. At least in my experience, the opticalRendu is better than Innuos Zen Mini and Lumin U1 Mini.
I use Innuos Zenith MK3 (paired with Network Acoustic Eno passive filter) in my main system. At first, I didn’t find it any better than opticalRendu, but as I put more hours on the Zenith it has clearly surpassed the opticalRendu. However, I will say that the opticalRendu is still no slouch.
The Innuos Zenith MK3 + Eno has pretty much taken care of most of the usual digital gremlins in my system. It sounds smooth yet rich, detailed, and three dimensional. It is very good in creating a realistic sense of space and ambience especially on genres like jazz, classical, and acoustic music. In short, it allows me to connect with my music at a more emotional level.
I know Lumin gets a lot of love on these forums, but I for some reason never warmed up to its sound signature. But of course, all this is system dependent.
Hope this helps.