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.
orchis oraches orishas
rachis orchis mariachis porches searches parches parritches barouches currachs ratches carritches aurochs birches wretches ruches arches troches crotches rotches breeches cratches caroaches grutches huaraches lurches brooches rouches roshis oraches diarchies crutches breaches caroches creches carroches riches brioches reaches retches braches rishis crouches earaches broaches larches curches grouches huarachos marches merches roaches britches brachs parchisi perches preaches soroches torches churches