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.
korats kraits karats krauts karates karts keratose courts grates groats carats kurtas gratis greats crates carates creates curates corrades cowrites keiretsu corridas courtesy grots carts cords crits grads grits courteous carets gradus grades griots gourds cartes grouts cruets curets quirts greets quarts curtsy croutes quartes carrots garotes curites garrets curtsey gourdes caritas curtesy grottos cardias corodies corrodes curettes garottes garrotes grottoes queridas
rats frats carats prats derats karats brats jurats korats drats rets curates farads garrets brads borts gyrates boarts merits hurts barrets crits fortes quartes forts virtus farts grads ports ratos curtsy gratis ferrets orates writs krauts parrots crates carrots arts seriates shorts cherts worts whorts urates trots treats torts tortas terrets tarots reatas courts deaerates sorts hearts marts cerates berets grits pierrots verts erratas lariats morts rates girts narrates aortas ferrates frits harts cartes nerts greats phorates laureates carets pirates ruts brits groats carates karates carts quirts dirts variates vertus karts burets derates kurtas airts frets creates artsy borates bruts quarts parts rots certes muriates kraits rads riatas grots fortis quartos orts grates berates prates curets aerates serrates purdas darts hydrates tarts territs tortes traits trets turrets warts worrits charts shirts yurts
korat karat karate krait kraut skort