If you have a family history of DM or feel you have some level of insulin resistance, the two best tests are CGM and OGTT. Built a CGM analysis tool to help understand CGM dynamics and get more input than just 'glucose high'. You can learn quite a bit about your body's response to glucose and also different types of food. Customized parameters for south asians as well but have standard measures so its useful for everyone. You can upload your CGM data and also food diary and assess response. Would love feedback. https://cgm.zinda.health/