Your post is a little vague, but the “best” place to store your digital music files is on a solid state drive. You can plug into the Marantz’s USB port and presumably play from there. I picked up a very cheap 8 Tb USB drive, to which I back up all of my music from my server and in an emergency, (like a potential hurricane) can grab it and put it in my pocket, just in case.
What is the best place to archive my digital music files?
I think I have got the best equipment setup for listening (Marantz receiver, Wharfedale and B&W speakers, vintage Thorens turntable). But my question is: Where should I maintain my digital music?
I have a sizable Apple music library. I just started to use Qobuz. Do I need an additional physical component from which I will access music?