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.
piney pine piny pinny pin pinnae pian pane pone puny pain pein pion pina pony punny peony penne panne pinna piano penny pennae pawnee hyponea pan pen pun pawn pean peen peon poon puna
liney winey whiney piney shine boney winy hinny heinie mine vine veiny phoney finny money fine kine liane gooney shinny piny meiny whine cine seine sinew zine dine tine tinny toney whinny wine chine looney bine viny whiny chaine ninny rainy pinny koine line liny hygiene meinie minae minny pine shinney sawney sheeney nine coney sine sinewy diene tawney tinea tiny waney honey ginny guinea shiny