Rakes are used to sweep away any leaves or debris that fall. They come in a wide variety of styles and sizes, the best rake to use as a starter is just an average leaf rake.
You can also get an adjustable rake as this will do the job of more than one tool by reaching into narrow areas or gathering very large piles of leaves. You should also note that using a rake with steel tines may be stronger but they will also be rougher on delicate lawns than a plastic one would be,