"Screamy shouty guy" is the equivalent of the "uncle installed Steam as a prank" meme at this point.I just stumbled across his channel looking for Kerbal help and yeah he's great. He's got a nice voice and isn't a screamy shouty guy. I also found another guy who does Elite Dangerous vids - ObsidianAnt - who has a similar style. I like most things sciencey and spacey so these two are great to watch as they seem to have a real passion for games+science.
No-one in the range of 1.000 to 1.000.000 subscribers is really shouting in their microphone. At least on Youtube. Sure there are the big guys like PDP but any other who made it big in the Horror game reaction period lost that shtick really fast. They have other methods to fish for subscribers.
Not to gang up on you, but when someone says they found a channel that is not screamy shouty, it probably means it is the first channel they found or it got recommended to them and they are surprised to have such a luck in finding the golden goose, when it is just the norm.