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.
melon melena million mullion malign moulin mullen mullein millennia
belon pelon felon melon talon pillion solion jillion pylon phylon halon felony ballon elan lion bullion salon shalloon gluon eloin loon loin clone colon coloni cullion gallon million nylon zillion alone lone saloon balloon solon clon reloan colone loan flown hellion billion billon blown chalone pleon talion aloin violone clown mullion colony galleon galloon lown bouillon leone yeelin
mel meal mealie mealy melee mell mellow mewl milo smell smelly