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.
lacy lacey lace lays lazy las leys lyse leas lice laws lass luce laze lase loci hylas lassi lasso lease lezzy lossy lousy luaus lycea lycee lyssa