I watch anime/manga content creators, only when i've finished a anime/manga i've loved and want to know what people think about. But i hate the very common 15-30 minutes long analysis of something that most often don't deserve it. Sure, hours long analysis for Serial Experiment Lain is fine, but not for your favorite Fantasy/shonen/shojo/yuri or whatever.
For recommendations, YT videos are usefull when you want to discover old stuff. For the new stuff, go on the front page of crunchyroll/HiDive/Netflix and you'll find what you want. But for retro stuff, YT channels are a pretty usefull ressource. BTW, I recommend the YT channel of KaiserBeamz for recommendation of old stuff. It's the only one i'm watching (infrequently), with a small french yuri manga channel (on hiatus for now).