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.
squeal squall sequel sequela squally sequelae squill squilla seagull squillae scale cecal scall scaly skull skoal skell scull suckle cecally
squeal quail decal squall sequel rugal quell egal ekuele equal faecal faucal fecal fugal vaguely jugal caecal coequal legal regal cecal sequela quale ducal