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.
ploidy plod plaid plied pleiad polity pallid plotty payload playday plot pled plait pilot poled piled platy puled plead paled pulled pelite pelota pilled palled plutei peeled polite polled pooled pealed pullout palladia palliate
ploidy loid sialoid xyloid bloody phylloid haloid holiday cloddy cloudy colloid keloid melody meloid moldy oldy sloid solid cheloid hyaloid
pili plie plow ploy poilu polio polo puli spoil