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.
phalli phial hyphal phyllo ghillie fall ghyll phyla phyle villi faille fallow phylae valley ghoulie
phalli all biali bally ball ally aalii collie billie gally killie quillai leally mall pall nellie pally realia celli sally dually tali tally walla wally willie challie chilli mealie ghillie fall mollie hall hallo gillie call calla gall villi goalie qualia lall maill mallei nielli pallia rally really sall dally duelli tall wall wallie wellie challa chally shall