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.
gunky gunk conky kinky guanaco conk gang gong kink konk
hunky funky junky chunky punky gunky punkey inky pinkey junk punk conky dinky hinky zinky hunk zincky dinkey donkey wonky chunk lunk gunk lanky snaky pinky bunk honkey hunkey bunko hanky kinky sunk honky linky funk punka dunk chinky monkey
gun gaun guan guanay guano guinea gunny