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.
snake snakey snack snaky sneak sneaky sink sunk sank snag sneck snuck snick snook sanga seneca senega snaggy sang sing snog snug song sung sync zonk
snake junkie dinkey snaky kanaka hankie honkey honkie hunkey hunkie nuke minke knack monkey pinkey pinkie punkey punkie snack snakey sneak donkey