If you need a plane for practicing, then you want electric rc trainers. I like rc trainers, especially electric ones, so much because they are designed with the beginner in mind.
These planes have more stability, increased durability, and the parts are easier to remove and replace then other airplanes. Electric RC trainers come either ready to fly or almost ready to fly. If you want to start flying right when you get the plane, then I recommend you choose a RTF model.