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.
pileate paleate pleat plate piolet palate paillette plat plateau palette palliate pallette platy pilot palet piled plead pallet polite pullet plutei pilled pelite pellet pleiad pollute pled plot pelt plied puled paled plait poled poult peeled pelota plotty polity polled palled pooled pulled pealed payload playday pullout
galeate oleate pileate paleate maleate late paillette gelate galette cleat palliate galatea alate valuate violate collate bullate blate palette relate ciliate slatey dealate delete toilette chelate plate palate latte foliate gallate vallate velate bleat bolete pallette elate eluate malate filiate folate fellate pleat roulette slate solate delate dilate toluate cholate lat let
pilea pile plea palea paleae pilau pilaw pilei spile