Where can i find the english animations ?

Hello everybody!
I want to find some animations in english version, does everyone know where are they?
Do you know what i mean? I want to find animations such as Dragonball Z, Naruto...and
so on, but i need the english version. Because i always find them in Janpanese.
So i need everyone's help. Help me to fine the resouces.
Give me your hand!
Thank you!