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.
laws las leas lows lays lase lass lease lowse lasso hylas luaus lassi lassie liaise les lis lose loos leis leys lacy lace loss lies less lues laze lyse lazy lees loose lyssa lacey loess lousy lossy lieus louse lycea louis wyles
vaws saws shaws chaws waws taws daws raws haws paws gnaws maws laws caws jaws yaws as