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.
uprose uprouse uprise upraise uppers
porose uprose operose leprose prose biparous repros prese vaporise prise leprosy sparse pursue vaporous cuprous prows pross proso pros apprise prosy saporous sparrows porous apyrase uprise peruse perse parse parous pareos purse prase praos pyros leprous viperous proas reprise repursue uprouse