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.
bunchy bunch bench banish banshee banshie
conchy raunchy bunchy chinchy paunchy punchy inch raunch launch concha poncho quench kench pinch munch manche cancha punch snatchy dunch wench chinch lynch rancho conch concho painch haunch finch eunuch bunch wrench paunch bench hunch honcho ancho cinch synch tench winch ranch lunch