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.
fruity fruit ferity frit fritt forty verity fretty forrit ferrite ferrety variety fort frat fart fret forte fried fraud ferret verite faraday ferrate ferried variate
fruity gritty charity bruit ferity fruit variety verity rutty quirt grouty parity purity purty rarity dirty trouty shirty