I agree with the suggestions on the Bach solo violin. I also would add Christian Tetzlaff.
Still on Bach, there is the great Mass in B Minor.
There is the great version with Karl Richter and the Munich Bach Choir, and Dietrich Fischer-Dieskau at the peak of his career.
However, I really line the Pygmalion with Raphael Pichon. Fischer-Dieskau, but really great choir works.

