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.
moocher mosher matcher mouchoir masher musher machree meshier mishear mushier
moocher tocher ocher leachier botchery botchier catchier hitcher lechery batcher hatcher botcher beechier cutchery bitchery beachier josher achier bitchier cheer ochre patcher peacher pitcher poacher posher reacher richer teacher toucher watcher witchier tetchier cosher nosher lecher touchier kosher leacher mosher catcher hatchery itchier fetcher notcher echoer etcher gaucher butchery voucher matcher witchery ochery coacher ochry patchier peachier pitchier poachier pouchier reechier ditcher techier butcher coucher chichier
mooch mocha mouch smooch smoochy