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.
loci louis louies looies lis loos lies leis lacy loss lose lows luce lace lice lossy lycea lowse lousy louse lieus loose loess lasso lassi lacey lycee