Digital streaming options for my system are confusing


I appreciate your advise in advance as I am more of a old school vinyl/cd guy. I have a McIntosh MAC6700 integrated receiver. It has a DAC but tech in this area is evolving at such a rapid rate that I am confused as the best way to access a high audio quality streaming/digital playback source. I have heard hi end streaming services (Tidal?) are great but my Amp does not have a direct iPhone/iPad connector. What is the best way to go that will keep my system simple and easy for the whole family to access? 
telemarcer
Bluesound Node 2 or 2i is an excellent choice.  Wireless connection with simple setup provided in the BluOS app.  Use your phone or tablet for control.  Link for Tidal subscription is in the BluOS app.  You also get for free, Radio Paradise and hundreds of internet radio stations.

Connection to your Mac can be rca from the Node to an input on the Mac or if you want to try the internal dac in the Mac a digital cable is required between Node and Mac.  Both can be connected at the same time so you can toggle inputs on the Mac to see if you prefer the Nodes internal dac or the one in your Mac.

 I have the Node 2i and am very much impressed with it.