The amount of talent on YouTube and similar sites is astounding. Many of the performers are not complete unknowns, but don’t have national followings. A good example of this is The Steve Thorpe Band. Thorpe, who unfortunately passed away a couple of years ago, was a fabulous guitarist in the Johnny Winter slide mode (at least in this version of Dust My Broom).
Here is another example. Eric Lugosch brings a unique perspective and crystal clear playing. He plays a lot of Rev. Gary Davis, but doesn’t copy. Instead Lugosch re-imagines and reinterprets the song. That is a big difference. Here is his site.