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.
loess loss less lossy les looeys louies lessee looies leas lose lies lass loos leys lows leis lees lues lease lieus louse lyssa lousy louis lasso lowse wyles loose lassi lassie lis las lez luce lase lice laze lays laws lyse lace loci
loess ess oes does toeas roes cess goes poesy fosse looies boss gesso jess voes chess jesse cooeys joss lossy hooeys messy mosso moues ness joes fossa toss fess foss loss foes noes less koss hoes guess bossy joeys cooees coss mess fesse looeys moss mossy gneiss ossa posse roues zoeas doss toes woes shoes