Thank you again to all who have taken the time to post their thoughts. My thinking at present is to get an Innuos Zen Mini, which can run the core Roon program, as well as be a pretty good streamer. (Thanks to @jjss49 for that idea.). The raw computing processing power in the Zen Mini is not great but I will only use one streamer and don’t think I will use its DSP which I understand can be a resource hog.
There is also a DAC built in the Mini even if some feel it is sort of a starter DAC. This way I can try the Innuos app and also Roon, and compare the music streamed from Tidal those two ways. That unit is nice since there are several upgrade steps for instance going to a better power supply as well as going straight out from its digital output to feed a better DAC. I do have a Schiit Gungnir MB I like how it sounds, and I think it is a good dac in its price range, using it with a Node right now.