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.
trouty trout trot tarot tarty torot treaty trod tart tret tort tardo trued droit trode trite treat tardy dorty torta dirty trait torte teredo terete terret territ toroid toured triode turret
grouty trouty court route rutty borty forty rooty fruity rout carroty grotty grout parroty purty reroute trout croute dorty shorty
taro router stroy strow stoury stourie stoure stour tyro tiro true troy trow trio tour toro touter