I've heard the Bricasti M21 and it's amazing, very neutral but the most important thing I heard is it's musicality. If you go this route look no further than their newish M19 transport. What makes this combo special is their IS2 connection. (I'm envious already).
Upgrading digital side
I currently own a Jay's Audio CDT-MK2 CD transport and a Holo May KTE DAC. I also stream (mostly files) with a Raspberry Pi (Roon and Audirvana software). These feed PrimaLuna EVO400 preamp and amp and Devore Gibbon speakers.
I am looking to upgrade my entire digital side. I have an extensive CD collection that I will continue to listen to as well as thousands of files.
My budget is around $20,000 and I prefer new equipment.
So far, for DACS, I have been looking at the Grimm MU2, Bricasti M21, Mola Mola Tambuqui and the DCS Lina. For server/streamers, Aurender N200 or N20 and Innous Stream 3. I know that the DACS I mentioned also stream, but I'm not sure that I want to be completely tied to Roon or Audirvana. I like the idea of internal storage for my files.
Finally, I am also considering the Luxman D-07X SACD player, which has a USB input where I would connect a streamer. I'm wary of the quality of the DAC in the Luxman, especially for streaming.
Any advice on the best combination of the above (or something I haven't looked into yet) would be greatly appreciated.