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.
les leys lees lies less leas lues leis lieus wyles lease loess looeys lis louies las looies lez lessee loos lows loss lose lase lass lice lays luce laws lace lyse laze lyssa lycee lossy lowse luaus lassi lousy lezzy lasso louse loose lycea hylas lacey louis lassie lezzie liaise