I am a junior with a 3.94 GPA, do I have a chance to get into the following schools?

uming that's unweighted, you have a chance at any school. But not always a good chance. Top schools like many of the ones you listed only accept about 10% or fewer of applicants, and everyone who is applying has top grades in the hardest cles and great test scores. You need that, and then you need a lot more to get into Harvard or Stanford - you need to find a way to make your application stand out, something that sets you apart from all the other top students in the world.