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.
curets curettes courts curtsy cruets carets curates curtsey curtesy creates curites crits carts creds curds courtesy greats courteous kurtas greets cartes quirts credos carats crates crudes quarts creeds garrets gourdes carates quartos caritas croutes quartes carrots crowdies corrodes keiretsu corrades corodies cowrites cords grits grots karts cards cruds corrodies krauts groats grouts cairds grades greeds griots karats crowds kraits grates gourds guards gratis quartz korats grides cardias karates grottos garotes corridas garottes garrotes grottoes queridas
barrets trets rets carets frets garrets curets terrets berets burets ferrets turrets arts frats greats greets tarts courts karts brats curtsy borts artsy airts carrots treats hurts morts boarts drats parietes vertus gourdes aortas rats shreds shirts charts worrits warts tortes territs parrots derats sorts prats grots merdes trots crits farts cartes bruts keiretsu reds pierrots grits kurtas merits marts fortis parts cruets hordes korats brits hearts quartes ports virtus girts harts forts rots ruts bardes quartos fortes verts darts quirts aretes orts frits nerts jurats creds karats dirts carats carts tortas tarots torts writs certes quarts whorts worts cherts shorts yurts
curet cured curette screed acred curried curite cared caret cored court create cred credo curd curdy creed curred cried curt cruet ocreate curate scurried