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.
trotyl tartly turtle tartily tortile tritely toroidal tortilla toroidally tardily tiredly treadle treddle torridly
protyl trotyl rootle rotl protyle
trot torte stroud trouty trout trode trod trite triode tret torta tarot tort torot toroid tarty tart strode tottered