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.
boche bouchee botch botchy bach bosh batch beach beech bitch butch beachy beechy bitchy bash bush
boche chew botch coach eche fiche bouchee niche ouch notch pooch miche rechew mooch lychee rotch loch rouche lichee seiche couch tache gouache touch ache fitchee fitchew pouch hootch cache hooch vouchee hoochie mouch nuchae nitchie poach mache mocha vouch louche roach loach rotche quiche ruche cooch douche gauche techie hotch touche