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.
squealed squalled squalid scaled skulled suckled skoaled sculled scald skald scowled sickled skilled scalade scalado sicklied scold cycled
squealed quelled squalled scaled recoaled galled gaoled goaled keeled quailed called eagled begalled equaled equalled macled nickeled nickelled recalled regaled skoaled coaled
squeal sequel sequela sequelae squall squally