I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
guile gul gulley gull glue glee gale gley quale quail gluey gully gaily galea quill killie galley quelea galeae goalie coulee quillai gal quillaia kill kilo gaol goal coil clue gala cole clew kale glia glow kail caul gall cull
guile fille quail quill joule ilea coulee vile ghoulie voile riley rouille taille pule toile pilea tule muley while mouille chile mile louie bailee rule mille quale maile bailey bailie file boule boulle bile faille rille tile rile tuille pilei tulle pile wile mule yule