rsbob 

Lots of good stuff out there to choose from but there is far more than I am aware of, so thought it would be good to share some of our favorite sites.

For a more scientific approach to training and nutrition: Dylan Johnson

For more fun than science, from a former pro determined to take as many KOMs as possible: Phil Gaimon

For more sciency stuff on performance and nutrient and maintenance: Road Cycling and Cam Nicholls

Frank72

Path Less Pedaled for Gravel Biking and Gravel Bike reviews

WhyFi

NorCal Cycling for race breakdowns.

joesch

I am entertained by Phil Gaimon KOMs & locations
Sorta the opposite of Gaimon is the SAFA Brian as he downhill's AFAP many of the top CA spots
GCN produces many great vids
Dustin Klein DKlein is entertaining for gravel action in the PNW mostly OR

chaadster

The only cycling YouTube channel I really love is Sam Pilgrim’s!

I’ll watch most of the others already mentioned occasionally, but I check in on Pilgrim regularly, even though his riding is nothing to do with the kind of riding I do. He’s got great skill in dirt jumping and MTB handling, but it’s his spirit that’s infectious!

I’m also rather amazed that his, uh, rudimentary mechanical abilities have not gotten him killed yet. I swear a hammer is one of his main cycling tools!

Eric F

In addition to Dylan, I also enjoy watching some of the guys he competes against in gravel races - The Vegan Cyclist and Adam Roberge.

If you're interested in MTB racing content, I really enjoy SYD and MACKY. Lots of great on-bike footage on some really spectacular race courses.

Shane Miller - GPLama and DC Rainmaker do great gear reviews.

GCN has a wide range of content. Some I enjoy. Some I pass.

Eric F

Just watching his videos makes me anxious and uncomfortable - LOL

icemilkcoffee 

GCN is entertaining, but from an engineering standpoint Hambini explains engineering concepts the best.

SpeedyBlueBiker

I don't really have any cycling youtube channels that I follow religiously other than a newer channel called Best Side Cycling that is Seattle specific. Other than that, I watch videos about cycling in specific places or about certain cycling topics that I am interested in.

subgrade

GCN and GMBN, although both have been running out of new ideas lately, so I pass on quite a lot of their content nowadays. From time to time I also check out Berm Peak Express, Sam Pilgrim, Path Less Pedalled, Hambini and probably some others that pop up on my Youtune feed, or when I'm looking for reviews of a specific product. Haven't paid attention to what SickBiker, or whatever his current handle is, has been doing lately.

JehD

Im a real fan of RJ the bike guy, he just has tons of info on how to get things done.

While not really my forte the GCN shows are always pretty entertaining.

KevCentral for entry level bikes and mods. He tells it like it is and while defiantly on the lower end of things he's dead on the stuff and doesn't pull punches.

Sam Pilgrim for "Epic" stuff lol.

sarhog

In addition to the previously mentioned Phil Gaymon channel and NorCal Cycling, I also watch Gravel Cyclist.

rsbob 

wow!

joesch

That is a crazy downhill and that his speed was almost 70 km/h down the hill and he still had the ability to jump and warn for the grating and pot holes.

smd4

I like the content and presenters on GCN.

rsbob 

Have to say I appreciate their Brit sense of humor even if some of the content should have been left at the curb.

Eds0123

I watch some of the mentioned channels every once in awhile, and my favorite changes regularly, So I'm not going to point to my current favorite,

In general I might watch but I don't care or vouch for channels who make that as a way of earning a liiving, It's about having fun and sharing it with fellow cyclists and if you make a buck or two so be it, I mean making videos take time and effort, but making videos just for making videos and making a living is not fun, not fun to watch for me, I wont watch,

Kevinti

I watch a lot of the Brian Safa stuff but also enjoy Simon Warren and the scenery of his climbing videos. I can't post links yet but these are very good viewing IMO.
It is particularly noteworthy to watch Safa's ascent to the top of class for his videos. You will be blown away to first view his early fixie stuff in Mexico search for this:

TRACK BIKES in MEXICO CITY 🇲🇽 aka: RoughCut: "Hotline—Safa"

Then to see what he has done for video standards in his later work. The guy is amazing. I hope he gets to the point of defining the industry standards for two wheel pursuits for Hollywood at some point but I have no idea if that is his future or dream.

The Chemist

Trace Velo for his reviews of Chinese bike components and Shane Miller - GP Llama and DC Rainmaker for their bike tech reviews.

Other channels I enjoy watching include Rides of Japan, Berm Peak, Francis Cade, and David Arthur - Just Ride Bikes.

Branko D

Overall - I like to watch GCN, also I'm subscribed to GCN+ which is sometimes interesting to watch. Also David Arthur, sometimes.
Training and nutrition side of things - Dylan Johnson , and also I tend to look at talks and so on by Stephen Seiler; although his presentation can be a bit slow, he's got a ton of interesting things to say.
Bike fitting advice - Bike Fit Adviser, and also Francis Cade's "Bike fit Tuesdays".
Technical stuff about CF bikes - Luescher Teknik

I have a problem with my bottom bracket / bearings and need an idea to fix it - Hambini, aged 5. Would be way better if he wasn't a ****-talking knobhead, but if you have a BB which doesn't spin freely, he is your guy.

Reflector Guy

I like their videos with Manon Lloyd..... She always has a fun time and a good attitude no matter what wet or cold bike ride they're embarked on.

Reflector Guy

The Park Tools videos with Calvin Jones are always good when there's a new kind of brake caliper or derailleur that needs some fine adjustments.

indyfabz

Favorite YouTube Channels

Daniel4

I watch
Oh the Urbanity
and
Not Just Bikes

tcs

Brompton Traveler - great travelogs plus the master of one-man cinematography