Trader Joe's sells a very nice hazelnut and cranberry blackbread in some of their stores; most sell a decent plain one as well. Cost Plus World Market has an assortment but most of the lighter variety and not to my taste. The TJ one is very nice with cheese - and they sell Champignon cheese there for a reasonable cost, along with a wide variety of other cheeses.

Add a decent unsalted butter to the list; difficult to find in ordinary American grocery stores.

Graubrot is a little more difficult to find, as is white radish, unless in an Asian market or neighbourhood.

Generally if there is a Trader Joe (Albrecht owned by the way) or Cost Plus World Market in town I am set; otherwise I find it challenging to find decent bread.

Some Wegmans and some Whole Foods have decent Laugenstange in the bakery section.