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.
ached ashed achiote
ached leached witched peached eched retched letched hatched douched poached bitched beached watched hitched patched notched coached tetched vouched mouched etched mooched niched peched latched hutched leeched cached pooched batched touched couched bached pouched ruched reached roached pitched matched fetched ditched teched itched hotched botched miched ouched wretched leched shied hatchet sashed deashed cashed fished joshed bushed shoed rachet fashed gnashed hushed fitchet ashed lashed leashed echoed pished washed whished hashed mushed wished wooshed lushed noshed shed sachet meshed gashed mashed dashed beachhead rushed latchet cowshed rochet chid pashed quashed chad moshed reshoed cachet outchid tushed gushed bashed reechoed whooshed ratchet coshed hashhead pushed dished shushed