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.
lez lezzy les lezzie lazy luce laze lyse lase lies lace lose lice leas leys lues leis less lees lacey lycea louse lieus loose loess lowse lease lycee wyles lassie lessee liaise looeys looies louies