I am subscribed to many YouTube channels, but my absolute favorites
are Markiplier, Jacksepticeye, Dan and Phil, Tyler Oakley, Shane Dawson and Jordan Doww.
I also love music channels such as Arctic Empire, Dubstep Nation, Eeuphonious and Mostly Strings.
There are also a couple Animash channels that I tend to stalk generally. (;
I personally love Alonzo Lerone (https://www.youtube.com/channel/UCqTk2nsJ9K_PRaDFG0rY4XA), Top5s (https://www.youtube.com/channel/UCX51Dixddr5HuwLVBH9ykeQ), Draw with Jazza (https://www.youtube.com/channel/UCHu2KNu6TtJ0p4hpSW7Yv7Q), The Lion Whisperer (https://www.youtube.com/channel/UC_NS4MiiHAFo3CYI7fRSLtQ) and Logan Paul Vlogs (https://www.youtube.com/channel/UCG8rbF3g2AMX70yOd8vqIZg).
I only generally use YouTube to listen or find new music out there, but whenever these channels upload something new, I'm always interested in viewing.