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.
tracheas torches trashes troches trochees diarchies tarsias trishaws
tracheas rotches roaches retches curches lurches grutches marchesa creches crouches carroches oraches marchesi parchesi caroches huaraches perches britches preaches brooches searches rechews diarchies reechoes ruches breeches troches riches reaches ratches caroaches wretches barouches crutches larches grouches marches cratches crotches carritches merches marchese parches earaches rouches parritches brioches porches broaches purchase braches soroches birches torches breaches trochees arches churches
trachea tracheae torch torchy trash trashy troche trochee