I need a backpack.!!!! helpp mucho needed!?

okayyy im going to be a freshman in highschool and i need a backpack. most days i will be carying around 5-6 binders and a couple textbooks and some other smaller stuff. i need a cute backpack that will be big enough to easily carry this. i think i might like a black one to match with everything, but i am also open to colors. i am a preppy blonde cheerleader and i love pink, lime green, aqua and purple if that helps. THANKS!