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.
plat plait plate pleat platy palate plot pelt pileate paleate plateau pilot plaid poult palet plead palliate pellet plotty polity pullet piolet plutei pleiad pallet pelota polite pelite payload pullout palette pollute playday pallette pled palladia plod paillette paled piled plied poled puled