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.
truancy trance trounce trans tarriance trains triunes durance tourneys trainees trannies trueness terrains terranes tyrannize turns terns tyrannies tyrannise tarns tyrannous drains ternes treens triens trines tronas trones durians trienes tureens turions
train trainee tranny triune tyranny