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