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.
galea galeae gale gala galah gal goalie galley gaol gley kale glee gall glue goal guile koala gally calla gayly quale gaily gluey coala callee quelea gulley qualia gul gull cole coal clew caul kail calo clue glow glia call
galea palea ala lea ale qualia calla alee gala paleae pale nala hale haole flea gale quale ilea plea realia sale tala wale whale chaleh shale coala leal vale quelea bale olea galah mealie maile galeae male koala value goalie alae kale aloe pilea rale rouleau dale tale walla chalah challa shaley