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.
grayly greyly graal goral grail gorily growly crawly gooral kraal coral gruel crawl curly grill growl craal corral curial grille cruelly gorilla queerly guerilla
grayly brawly chorally drawly surreally rurally orally nearly morally greyly crawly jurally gyrally virally early aerially aurally rally aryl areally wryly really rawly marly gnarly neurally pearly serially dearly dryly yearly