Auspex Tactics
Auspex Tactics is a Warhammer 40k youtuber known for his rigorous research, professional PowerPoints consolidating 40k Leaks and making 20+ minute powerpoint presentations out of it. He's got a good voice, though, with commenters unironically asking him to make them ASMR videos to jerk off to paint minis with.
The main appeal of his channel is that in spite of the fact that he draws out 20 minute long powerpoints with information that would've only taken you five minutes to read (hence why the replay slider looks like a mountain range), he doesn't have an annoying Youtube/Content creator persona and just spits facts: he doesn't pretend to be an Imperial Fist Chapter Master, doesn't get butthurt because his fluffy space marine list gets fucked by turn 2 *cough*40kin40minutes*cough*, and isn't a mouth-frothing nazi. You could even argue that because of Youtube's algorithm throttling views if he doesn't continuously post, he's got no choice but to keep his main videos a certain length and to create pseudo-tiktoks to stay relevant in the eyes of the algorithm.
tl;dr every time GW leaks a codex, Auspex will probably be the first and most easily-accessible source of info, prompting people to say "Auspex has a video on it" when asked for a link, prompting others to say "I don't want to watch a fucking powerpoint"