There's a lot of great history YouTube channels out there but, in my experience, the best ones are those who niche down and can really get into the meat of a topic or era. What historical periods are you interested in?

For instance, I really like early modern Europe history (16th to 17th century) and SandRhoman History is really great for that. The Historian's Craft is also great if you love classical (Greek & Roman history).