This is off the top of my head because I'm typing this from my school cafeteria and I'm too lazy to go look up more YouTubers BUT~
Chanell and Hayley will forever be my heroes. (elegantchanell and animedorksofthefutur)
Gabriella (CuTeTgIrL4u101), though she doesn't make videos anymore, I watch hers when I need inspiration/motivation. She uses good songs, yo.
Mia (POTENTiALcelebrity), queen of acting (along with Chanell).
EvanableProductions. They're so perfect. Very very smart girls, too. I love them~ <3

...that's all I can think of right now. There's DEFINITELY more, but I don't have the usernames right in front of me, so.