Depends on what I’m eating. With deli, only Dr. Brown’s (not the best hechsher, but I allow myself).
With chopped liver- Cel-Ray
With pastrami- Cream soda
With corned beef- Black Cherry
With a burger- Coca Cola
With chulent- Mayim Chayim Cola
With tuna- Mayim Chayim Ginger Ale
With pizza- Sunkist Orange Soda