Like the others have said Troy sells a good case for fair price. I have bought cases from him for years. This information might help you, his card. I buy mine at shows to save shipping but he ships regularly.
Click on card and it will make it more readable
If matching cases matter, it helps to stick with the same maker. I've bought or ended up with lots of oak cases, and even when the stain is similar, they end up looking a little different. (The angles, the thickness, the joints, the bevel/edge around the glass, etc.)
Pick a decent one who is going to be around for a while. (Troy seems like a good one.)