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.
quirts quarts quartos quartes quartz curtsy courts curets kurtas curtsey curtesy curites curates keiretsu queridas courtesy curettes carts crits karts grots grits curds courteous cairds crates carets krauts korats griots guards karats cruets greets carats gourds greats groats kraits cartes grates grouts carrots gourdes garrets croutes grottos creates caritas carates karates garotes cowrites garottes garrotes grottoes keratose
airts girts shirts dirts quirts ferrites rites shairds grits bruits tarts fritts veritas borts fortis birds frats caritas parrots peritus riots rets charts rats whorts rots burets tortes cartes garrets frits ruts courts sorites frites yperites pyrites yirds ports shorts crits traits territs droits derats sorts norites certes rewrites hearts jurats hurts worts warts lairds verts virtus nerts carats lariats merits kurtas barites farts karats curites arts korats bruts pierrots griots karts vertus drats fortes darts torts boarts burritos forts girds turrets carets worrits writs grots artsy quartos quarts carts berets writes brits quartes carrots britts orts morts ferrets barrets cherts harts heriots cairds curtsy brats fruits verites frets kraits cowrites curets iritis weirds terrets chariots marts neuritis parts prats cerites diorites raitas aortas tarots tortas trets trots yairds yurts
quired quirt quarried quart quarte quarto querida queried squired squirt