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.
terrella trull troll trill trolly torula trolley torulae tearily hydrilla tirl drill trawl trial droll triol trail truly dearly derail direly drolly
terrella corolla hydrilla prelaw perilla morello morelle guerrilla guerilla relay carrell areola virelay virelai borrelia barilla aureola zorilla gorilla
tarre terra terrae terry stere stereo