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.
brachs braches breaches broaches birches brashes breeches brioches britches brooches barouches brushes
brachs currachs cratches crouches curches roaches riches retches ratches reaches creches breaches rachis earaches brioches caroches carroches grouches larches marches merches orchis parches perches preaches soroches troches huarachos broaches carritches crotches caroaches huaraches brooches breeches braches britches rouches barouches birches aurochs arches crutches wretches ruches rotches grutches lurches mariachis oraches parashahs parritches porches searches torches churches
brach brachia birch brash brashy breach broach broche abrachia