2.) Bill from "1HappyDiabetic" This guy is hilarious and just has the best outlook on life despite his diabetes. He is really inspirational and posts great videos with tons of awesome tips.
3.) Danica from "DiabeticDanica" Danica gives you tips on everything from site changes to information about insulin pumps etc. She also has a series on her channel about misconceptions related to Type 1 diabetes. She is also really funny.
4.) Alissa Evelyn from "notjustapples" Alissa gives you a lot of info on the basics of living with diabetes. She takes peoples questions and answers them right on her videos. She also mentions all the pros and cons of insulin pumps and MDI's (multiple daily injections) for those looking to try them out. She has great recipes on her channel too.
6.) Cassie from "qtcassie220" Abundance of videos from tips and tricks to parents and friends reactions. etc.
If I find more then I will add a part 2!