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.
krone kerne kroon krona crone krooni groyne coronae kirn karn kern grown korun crown crane groin croon crony groan carnie gurney koruna cornea carney garron koruny corona carrion grannie greenie carinae carn corn curn gran grin
irone crone drone krone prone trone neurone pyrone marron erne tourney marine ferine barony arene boron murrine furane moron borne perron baron crony murine gurney baronne dourine morion brown groan terrene chorion whereon turion garron terne durion pereon diuron serene carnie kerne trona journey cornea purine barney groin larine groyne brine heroine roan iron morrion carney neuron borane krona giron irony virion corona rune gyrene heroin hyperon burnie bourne lierne neurine narine frown serine kroon grown hereon heron sciurine crown maroon carrion crane coronae prune gyron croon drown pyrene taurine terrane terrine trine prion byrnie urine chorine shrine