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.
froze froes furze frieze frowzy frouzy freeze friz feres farce faros fores fares frise fires force furzy fries frees frizz frows fraise frisee frizzy frowsy farcie furies fierce farrows foresee ferrous foresaw ferries fairies furioso furious furrows faeries ferreous gheraoes firs furs
croze froze torose cirrose prose porose graze craze gyrose heroize heroes furze erose froes brose braze arose rose roes raze morose prize rerose zeroes trooz