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.
luce lues lace lice lacey lycee louse lycea louies les lez lyse loci laze leis lees leas lase lose lacy less lies leys lease lezzy lieus loess loose louis lousy lowse luaus wyles
luce puce sauce deuce douce duce