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.
felon felony flown feline flan phelonia fallen phylon valonia violone
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
feal feel fell fella fellah felloe fellow felly feyly filo floe flooey flooie flow fuel