A lot of people ask me about tutorials on how to use many of penetration testing or hacking tools that are out there. Here are a few YouTube channels that I follow as they some amazing content and have really helped me learn a lot. Also, I am always look for more channels that produce similar content, so if you know of them, please share!
Hak5
Seytonic
HackerSploit
NullByte
JackkTutorials
https://www.youtube.com/channel/UC64x_rKHxY113KMWmprLBPA