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.
triter tarter traitor trotter tardier tartier treater troutier torrider darter tartar territory trader tartare tireder torture treader derider dirtier toreador trattorie
writer fruiter bruiter triter rewriter cowriter heartier carter prettier ferreter braider rioter gritter courter ruddier crater critter carrotier courtier greedier horrider krater porter greater grouter broodier grodier brighter arider readier nerdier barrater shirtier charter wordier ureter trotter treater torrider ratter tarter dirtier partier perter darter grater fritter lowrider garroter artery fretter portiere reedier brattier reutter retear ritter rowdier prater joyrider rider hardier frater rootier cruddier greeter grottier frettier router ruttier broider grittier rooter rotter groutier garter heritor barter fruitier lardier curter quartier narrater hurter garotter irater parroter frotteur artier rattier traitor curdier rater pearter quarter purtier sorter derider tardier tartier raider troutier wartier charioteer chertier shorter
trite tret stride tarty tort torta torte trait tart tried triad triode trot reiterate ritard striata striate tittered