Can anyone recommend an FM Receiver that would play into a relatively high end system?

McIntosh MR-78 without reservation. 

I have owned several Magnum Dynalab tuners over the years starting with  Magnum Dynalabs Etude then moving up the line to their internet tuners, MD807T on one system and a MD809T on main system. Gives the ability to listen to 40k+ internet station as well as FM. I use a FM antenna on both and reception is every bit as good as my analog FT101A Etude.  

There are a lot of excellent FM tuners. See fmtunerinfo.com Shootouts page.  As a project, I bought a few to see if I agreed, or maybe wanted to upgrade to.  Despite really trying to contradict the findings, just for fun I tell you,  I found that every comparison was spot on, even my beloved Kenwood KT-917 was just a tiny bit less dynamic/softer in the bass than the somewhat higher rated B&K, seriously hard-to-operate TS108 (The only one I kept).  The Sansui 707/717 was pretty much their equal, and my KT-815 needs some bass, just as stated in the shootout, but sounds good on classical music.  I tried others, and never once found any tuner out of the order it was placed in the shootout.

Interestingly, only my best pre-amp demonstrated the very slight advantage in sound of the bass from the B&K over the KT-917.