hbomberguy's video essays on games are some of the best content on YouTube

More games video essayists I like : Noah Caldwell-Gervais, Joseph Anderson, eurothug4000, GiantGrantGames (mostly RTS games and challenge runs of said games, but he has a great voice and his reviews are interesting), Mandaloregaming (not longform, but good editing and analysis).

Edgelord special mention : SsethTzeentach. I do think he definitely gets too edgy at times, though it is sometimes funny, but he does talk about some very obscure games sometimes and highlights what makes them original/interesting