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.
stuns stains stenos setons steins stanes stones satins soudans suddens seitans sateens stannous soutanes sootiness stance stanza cytons sedans suddenness saddens sadness soddens zeatins seediness
tuns stuns duns neatens cutins cottons patins lattens voudouns setons jetons tons mittens mutons phaetons phytins buttons nitons matins tins zeatins tans shaitans chitins rattens whitens titans pitons biotins satins ratans cotans tens quietens retunes rutins tauons vodouns latens fattens moutons etnas patens muttons newtons boutons futons bedouins dunes lattins mattins phytons heightens voduns beduins pattens tunes photons cytons tautens kittens seitans jettons battens putons rhytons tunas batons rattons rattans betons wheatens witans attunes chitons sheitans
stun stane steno stone stoney stony