I'm A Type 2 Diabetic Age 68. I've Been On

I'm a type 2 diabetic age 68. I've been on glybride micronaise 6 mg. daily for very many years and I'm feeling due to the black box warning on this drug after the age of 70, I need to start looking for a new med. that will support my issue. I've taken Metformin in the past . Didn't work well for me. My A1C is okay at 6.6 at last blood draw. I think I could do better. My BMI is 29.8. could you give me some Ideas. Thank You Geri