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.
Robbaz - He is a Swedish guy I have watched for a very long time now. He has the ability of turning what could be mundane games to watch, into wild and crazy stories. Highlight series he’s done are Skyrim, Kerbal Space Program, and The Sims.
He posts a lot less than he used to on YouTube, but they’re great everytime he does.
Pre-warning - His videos contain a lot of dark humour, so may not be for everyone.
Christopher Odd, hands down.
Discovered him around the time XCOM2 got released, because I was looking for someone to learn a trick or two from. Learned a lot from how he plays tactical games, but stayed for his calm and down to earth way (I absolutely can’t stand that hyper, over-the-top crap that a ton of Let’s Players do). Have also discovered the one or other gem through his videos.
Can only recommend!
Oh, and I also watch a ton of stuff on game design due to an interest into game development and recently did a blog post on my favourites there. To quickly summarise that: The Architect of Games, Design Doc, Game Maker’s Toolkit, GDC, Noclip, Razbuten
Mandalore, Hbomberguy, AmbiguousAmphibian, Jwlar, The Dadliest Man, MattKC, Oxhorn, Joseph Anderson, Your Favourite Son, Summoning Salt, Noodle, Avalanche Reviews, Monty Zander, Boulder Punch, The Nth Review, King K
Maybe some others, but those are the ones that jumped out in my Sub list!
2nd for AmbiguousAmphibian. My wife isn’t a gamer, but she loves to watch his videos with me. He always works in some absurd narration and social commentary.
100% the boyf tunes out on most my gaming YTer bullshit but enjoys AA, the absurdity and the Sims help 😅