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.
torula torulae truly trull tirl terrella trail trawl trial trill triol troll dourly trolly tearily trawley trolley hydrilla
ferula morula neurula torula morulae trull gruel pyrola parlay neurulae ferulae curule ferule ferrule ruly rule torulae cruel truly
tor tory stoury stoure stour story storey store true tour torr tora toro torii tori tore torah stourie touter