What is a good camera to buy if want really clear pics and good zoom?

You can’t get a good quality picture without spending a lot of money on equipment. The more expensive the equipment is most likely to have the better quality. One thing you can do is get to learn your camera so that you know all of the different features to get the best picture.
Zooming in is not always the best thing to do for quality pictures, you want to get macro shots which means close up pictures but when you zoom in things get harder to focus on because you have little stability to keep the camera from moving. Also you need to have good lighting, if it is really dark in a concert or something then you would most likely get bad pictures because there would be no light to capture then image.

I would suggest getting like a Canon or something they are called, but they can be more expensive than others.