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.
foresees frisees freezes forces phoresies phereses pharisees frizes furzes frises farces farcies fraises frasses friezes frizzes frizzies pheresis verses versus
resees foresees duresses diureses diaereses resews frisees pharisees phereses phoresies heiresses caresses heresies creeses cresses pareses peeresses presses seeresses diereses dresses tresses
fores foresaw foresee fares feres fires force fours frees fries froes