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.
I like DarkViperAU. He’s a GTA5 speedrunner, something I had never followed, but his explanations and general style is great for me. His “one hit KO” series, where he attempts to complete GTA5 without taking any damage, is a fun place to start. https://youtube.com/playlist?list=PLAnJ4ZuTYaeGOdVzYfhfZUgjVcyCeYVwO