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.
glue gluey clue gale glee gley guile galea galeae gulley goalie galley gal gul cole goal glia gall gala glow gull clew kale gaol gaily galah gally gayly golly gully quale quell
blue flue value clue glue slue