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.
gault guilt galoot guilty galiot gullet gallet galloot galliot galette galatea galeate glut cult gallate galleta culet cauld guild glute gleet gloat quilt glout culti callet galled gulled goaled cullet glutei gaoled guiled gleety gullied quillet gallied culotte quality calotte clot colt glad gled gold kelt kilt
vault fault sault gault alt fealty malt halt moult cauld poult valet culet faulty salty vaulty zealot chalet shalt guilt dealt culti cult alto auld fauld lealty quilt malty built flauta rialto realty alit salt palet chalot yauld
gal gul aculei gulley gall guile goalie goal gayly gaol gally galley caul galeae galea gale galah gala gaily gull gully egal