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.
plot pilot plotty pelota plod pelt plat pullout palet plate pleat plait poult platy pelite palate polity pullet pallet polite ploidy plutei piolet pellet payload palette pileate pollute paleate plateau palliate pallette pled paillette paled piled plaid plead plied poled puled
lot allot ballot blot hallot helot clot maillot pilot plot reallot slot zealot challot chalot shallot