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.
tort torte torta torot trot tret tart trout dorty treat tarty trait tarot trite terete terret turret toroid torrid territ treaty trouty toured diorite trad turd dart dirt trod treed triad tired tardy tried trade tread dirty tardo tared trued trode tyred
bort fort mort ort port sort tort whort wort short
tor tora torah tore tori torii toro torr tory