I've been a huge fan of Hickok45 since the beginning of his channel, he puts out excellent entertaining and informative videos. He is an incredible shot as well, if I hadn't followed him from the beginning I never would have believe someone if they told me they hit a gong at ~86 yards with a Smith and Wesson Model 36. I find him personable, like a grandfather/father anyone would want to have.
I'm also a huge fan of Iraqveteran8888 and I've been following his channel ever since it's roots, excellent mix of informative videos whether it be firearm reviews, gunsmithing, FAQ's, Gun Gripe's, Five Guns, etc. while keeping it very entertaining along with their other quirky videos or assortment of targets. Barry is sure definitely a loss for the channel but they've got a good train chugging along.
I'm also a big fan of many other channels that have been listed here or may not have such as Jerry Miculek's channel (Miculek.COM), Sootch00, TNOutdoors9 (Excellent Ballistic Reviews), Demolition Ranch (Excellent up and coming channel, I expect to see it get big some day), 22Plinkster (.22 Firearm Reviews and Trickshots) , MilitaryArmsChannel, Taofledermaus (Awesome shotgun loading, ballistics, and a whole slither of scientific fun) GunBlastDotCom (Excellent firearm reviews), FPSRussia (Purely entertainment, but seriously who does not love some NFA fun?), Jeff3230 (Almost purely entertainment), TheYankeeMarshal (Quirky ******* humor but I find it entertaining, yet he has some decent videos), TheFireArmGuy, and DocTocDad(Lots of great .22 LR videos, among other firearm videos).
I've also recently became a fan of channels like TacticalPriority (I believe he's from MA and I believe he's a member here on NES, excellent local IDPA videos, reloading, and reviews) RisArms, TheARMORYchannel, ScubaOZ, Hank Strange, and Birdshot1911 (Cool young boy/teenager into shooting, almost like a teenage Hickok45), and MAINEPREPPER.
I used to watch ColinNoir and StevenCrowder but they have fallen under my radar the past few years but I'm sure y'all will find them interesting.
I've learned quite a lot of information from each of these channels along with quite a bit of entertainment value, I'd recommend many if not all of these channels to any of y'all. I follow quite a few channels and I'm sure I'm missing a few, but there's a good listing that you can't go wrong with.