The best Instagram bio is one that reflects your unique personality and accurately captures who you are. It should be upbeat and engaging, while also providing the highlights of your life such as your interests, occupation, and hobbies. If you include a profile picture, it should be a professional portrait that showcases your best features. Finally, if you're following a certain aesthetic, you may want to incorporate elements of that into your bio as well. No matter what format you choose, it should be a genuine reflection of who you are and what you are about.