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.
scull scall skull squill squall squilla seagull squally squillae scale scowl socle scaly skell skill sequel sickle sickly squeal suckle cecally sequela sequelae
cull scull squall seagull recall facula scall picul macule macula loculi locule fecula bacula oculi call quill quell gully gull cully caul quoll skull squill