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