The answer might be unsatisfactory, but it’s the generic" Depends on what you’re into, and perhaps what your intention is in the type of content you’re trying to find. I’ll go through my channel feed, just know this will be long and you can pick what you find interesting.
I watch different things at different points in the day. During most of the day i like to watch content that is engaging, for newsy type stuff i watch Philip DeFranco’s channel. For science, tech, props and art i watch content from Tested, for history i watch Townsend & Son and Forgotten Weapons, for humor i watch Facts series of “Irish people try X thing”… its pretty much the buzzfeed formula but i find the people fairly amusing. In the mornings i’ll watch Good Mythical Morning. Red Letter Media for humorous and brutal critiques of current movies and shitty B movies. SciShow, Mental Floss & Brain Scoop for education, facts & science. General humor i watch Ashens, Barshens.
At night i like to watch longer videos so i can wind down and it makes it easier for me to fall asleep. So i watch gaming videos, also watch stuff like cooking channels like My Virgin Kitchen, there’s a fun drawing channel called Drawfee, Hydraulic Press Channel, Taofledermaus (they shoot custom or exotic shotgun ammo, it’s more interesting than it sounds). Gosh i’m missing a lot but i don’t want to write a giant block of text lol. But hope that helps some!