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.
curettes curets creates curites curtesy curates courtesy cruets carets creeds crates curtsy cartes courts courteous croutes quartes carates cowrites grottoes garottes crits carts curds creds garrottes crudes kurtas carats greats quirts greets grates credos greeds quarts garotes garrets quartos grottos karates curtsey caritas carrots gourdes corodies corrades corrodes keiretsu garrotes crowdies corrodies grits grots cards cords karts cruds grouts grides grades krauts groats cairds griots gourds korats kraits guards crowds karats quartz gratis
ariettes pirouettes proettes syrettes burettes barrettes curettes grottoes sureties rottes creates ariettas laureates birrettas garrottes garottes varieties reties parietes aretes pretties birettas certes berettas berrettas
curet curette curt caret court create cruet curate cured curite curred