https://www.youtube.com/user/marquesbrownlee
Marques Brownlee - Tech reviewer who has just reached 10 million subscribers for good reason!
https://www.youtube.com/user/LinusTechTips
Linustechtips - One of my top channels, also fantastic technology reviews. Fascinating to see the team grow to this massive content creating behamouth!
https://www.youtube.com/user/Wendoverproductions
Wendover Productions, what can I say! Planes, trains, logistics and economics.
https://www.youtube.com/user/JitaLounge
Economics Explained - Great channel that does in depth looks at different world economies and seems to do a pretty honest and unbiased look.
https://www.youtube.com/channel/UCy0tKL1T7wFoYcxCe0xjN6Q
Technology Connections - In depth look at technology, especially vintage stuff and the history behind it! Some fantastic explanations of video/audio technology too.
Others have mentioned Donoteat01's well there's your problem podcast, which is always pretty funny. Obviously they have quite strong political opinions, but it's worth playing along, because they really do hit the nail on the head when it comes to certain things!
https://www.youtube.com/channel/UCLtREJY21xRfCuEKvdki1Kw
H3 Podcast - Ethan and Hila Klein from the channel H3H3 have taken their comedic takes on memes and trends into a longer format show, with interjection from the technical team made up of Dan, Zach and Ian!
Drew Gooden/Danny Gonzalez
They claim to be different people, I still don't believe them;
https://www.youtube.com/user/gustoonz
Gus Johnson - Short form comedy videos/sketches
https://www.youtube.com/channel/UCtHaxi4GTYDpJgMSGy7AeSw
Micheal Reeves - Tech related shenanigans, such as a roomba that swears when it bumps in to stuff and trigger me Elmo!
https://www.youtube.com/user/CaptainDisillusion
Captain Disillusion - Deconstructs visual effects and online hoaxes for your viewing enjoyment!
https://www.youtube.com/user/szyzyg
Scott Manley - Everything space related!
Oh and I'm on this forum, so obviously I watch Tom Scott and Geoff Marshall!