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.
groyne groan krone groin crone grown garron gurney greenie coronae grannie grin gran grana crony kroon garni krona kerne green crane crown croon grain granny grainy carnie greeny corona cornea carney krooni carinae carrion guarana guarani
groyne baronne borne heroine irone coronae crone krone neurone prone pyrone drone trone