I linked a Warlockracy video because I really enjoy his choice of games and presentation.
Other channels I really enjoy: Mandalore, Grim Beard, Civvie11, Oboeshoesgames, and Boulder Punch.
If you can’t tell, I like longform, scripted and edited videos on older games and niche games and mods.
CJUgames, Many A True Nerd (MATN), ManlyBadassHero, and Markiplier are my favourites. Except for MATN, they all focus on horror games. I like MATN for his strategy game playthroughs, such as Civ or Xcom.