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.
bugloss bugles bogles beagles begalls boggles boucles buckles bacalaos backless beakless beguiles booklouse
bugloss gloss regloss tugless siglos colossi glass glossa glossy glows eggless fogless jagless legless pegless reglows igloos dayglows gigolos wigless