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.
fiery fairy firry ferry faery fry fer fir fury fire fray vier fere fiar fair very fear feria veery foray furry feuar feirie forwhy faerie feriae far fur furrowy for fro faro vary fora free frae fare fore four veer frow vera froe vair
fiery faery very hairy firry ferry veery serry deary zooier derry peery doughier pier merry terry leery weary query whirry jerry cheery kerry sherry vier fairy eyry wrier beery berry herry aery eery bier sieur deray dairy diary perry airy teary miry tier lier wherry leary wiry gooier cherry kier shier