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.
curates crates creates carates curites curtesy curettes courtesy grates curets cartes curtsy carats courts courteous quartes karates croutes curtsey crits curds carts corrades creds cowrites gratis carets credos grades quarts cruets krauts kraits karats groats korats quirts crudes creeds greats kurtas gourdes caritas cardias garotes quartos carrots garottes corrodes corodies crowdies garrotes grottoes queridas corridas keratose cruds cords corrodies cards grots grads karts grits garrottes quartz gradus grouts griots greeds crowds greets cairds guards grides gourds garrets grottos
rates urates deaerates serrates phorates narrates carates cerates aerates berates crates ferrates borates curates gyrates hydrates prates orates pirates derates karates grates rats certes karats grades aretes irades fortes garotes variates curites forties laureates sorties gratis brutes courtesy cartes norites charades virtues cerites seriates curtesy yperites dirties treats kraits ferrites tortes groats traits barites writes pyrites sorites trades quartes rewrites creates rites verites frites frats krauts korats muriates rotes brats jurats lariats parades garrotes hearties carats parties cowrites corrades greats diorites prats drats ratos tirades treaties barytes derats erratas shorties
curate curt carat carate court crate create curet curette curite