Looking for preamp recommendation

The key question is what sound characteristics are most important to you.  Forget about being drawn into looks unless McIntosh preamps give you the sonic qualities you’re looking for.  Are you looking for more tube warmth and fullness or more neutrality with some tube magic?  That should be your determining factor, so if you share that info you’ll get some great recommends here. 

OP, go used. You can drop down to a level you can afford. If you look 5 - 10 years old. I bought used until I could afford new.

I have very effectively paired a Supratek as well as a Don Sachs tube preamp with a PassLabs X250.5 amp.  Right now I am listening to this amp being driven by a solid state SPL Elector preamp and hearing glorious sound.