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.
harmine harmin harmony hormone hermaean
harmine carmine ermine germina termini germane promine hormone permian pearmain crimine vermin harmin vermian fermion bromine bromin romaine primine dormin tyramine