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.
lace lacey lase luce lacy laze lice lycee lease lycea lassie liaise lez las les lass leis lays lees loci lues lies laws lyse less lose lazy leys leas luaus lyssa hylas lassi lowse loess lasso louse lieus loose lezzy wyles
ace face lace mace pace peace race dace tace