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.
phytins phytons phytanes photons phaetons photoionize fattiness futons fadeins fatness fattens fitness
phytins tins phytons biotins attains tines tains patines reattains poutines retinas rhytons rutins satins steins detains cutins latinos latinas lattins luteins matins mattins mutines patinas patins ratines retains retines routines cytons stains zeatins chitins