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.
grouts grots griots groats croutes garotes grottos grits grottoes garottes garrotes cruets gradus grates greats greets krauts garrottes gourds courts gratis gourdes carrots garrets courtesy grads cruds karts carts grids crits courteous karats carets credos curtsy greeds quarts curets grades cartes crates carats guards crudes grides quirts kraits korats crowds kurtas carates quartes karates creates caritas curtsey curtesy curites quartos curates corodies corrodes cowrites crowdies curettes keiretsu keratose
routs grouts trouts whorts chariots ruts cruets roots courts arduous borts bruits brutes rots fruits shrouds bruts routes carrots rotos morts parrots ports reroutes droits torts trots sheroots heriots riots orts krauts riotous forts virtuous hurts rotes courteous croutes grots griots pierrots rotis groats pyritous sorts tarots tortuous garotes rotas garrotes worts cheroots shorts yurts
grouty grout croute garote garotte gourd gourde griot groat grody grot grotto grotty