What do I Need in Order to Stream digital content and Store & Play CD's ?

I also have a Transcendent Grounded Grid tube preamp and have just purchased a Schitt Freya preamp/whatever.

Thanks for your patience guys. I have not ripped any cd's yet, nor am I streaming any audio other than Pandora-through my Sonos.
So, Ok, listen. I am an old guy. I have a splendid old guy system with digital in the form of CD's played via my described PS Audio Lambda transport & Classe DAC. Because I enjoy Pandora, I now want to stream cd quality audio via Tidal (because I understand its the only service with hi fi quality sound). I also want to store my CD's digitally and play them. My question is, what are the best devices and means to accomplish this goal?
Thanks to jond,donjr& sbank for your patience with my doddering attempts to communicate my questions!

True that! I have a friend my age group who is a long time computer nerd and he is impatient with my ineptitude, I'm just trying to catch up enough to communicate with him! Puts like learning a new language of acronyms..

What would be examples of good streamers, for critical listening in my main system? Using my current Classe DAC, or with a Schitt Yggy..?