which network streamer without DAC?

Have you looked at the capabilities of the Sonare opticalModule. I am learning about this now and it seems like something to understand before buying the units mentioned above.

https://www.sonore.us/systemoptique.html

I am having the Zen Mini together with RME ADI-2 DAC. Works very well.

I use the Zen almost entirely for streaming, but I have a few albums on the disk that are not available on Tidal.

Only complaint is that it is a little slow in starting up. Maybe I should just leave it on always, but I don’t. The blue light is not that nice.

I was contemplating the Project Pre Box as it is MQA enabled.

I run Roon as well, btw.

The Lumin U1 Mini is a wonderful device.  I use a Lumin U1 as my main streamer and it’s a keeper.  Lumin’s support is great, their streamers sound better than anything close to their price and they support Roon, MQA, DSD and they have the best app I have used.