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.
pleiad plead pled piled plaid puled plied poled pleat paled polled pooled pallid ploidy pilled palled pulled pealed peeled plutei paleate payload plateau playday pileate plod plat palladia palliate platy plate palet plait polite pelite polity pelota pellet palate pallet piolet pullet palette pollute pallette
pleiad lead leady felid iliad gelid colead plead delead weald chiliad
pale palea paleae pele pile pilea pilei pili plea plew plie pole polio pule puli speil