THere is this dude on Youtube his name is Alexander the Titan he has some really cool horror videos his channel is growing be too, you should check it out.
Aside from Arielle Scarcella, personally I don't have too many favorite YouTubers, besides local news.

However, the favorite channels from Caprice & Ella are Talking Kitty Cat, Cole & Marmalade, Butters the Bean, and ninerlives.