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.
lase lease las lassie liaise lyse leas lose lass laze lays laws lace lasso luaus hylas lowse lassi loose lacey louse lessee lis les lez lies lues leis loos lice loss lees leys lazy luce less lacy lows lousy lyssa lycee lycea lieus louis lossy loess lezzy wyles
base ease fease phase vase case lase lease pase pease rase cease tease chase as