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.
trock troke truck track trick taroc troak tarok tricky troika trog turk torc trek trickie dreck traik toric trigo triac drouk trike duroc turkey yttric turaco drecky derrick turacou touraco dark dirk dork drek trig trug
rock frock crock brock trock roc wreck croak reck broke rick croc ruck brook crack arrack rocky rook derrick drouk taroc track troak troke carack crook hayrack grok euroky wrack iroko barrack carrack brick prick rack crick wrick cruck heroic rerack dreck duroc tarok trick hayrick truck
taro tiro toro trio trow troy tyro strow stroy