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.
trousseau truss torous torose triose toros tress troys druse truce trows tours trois tyros dross torse trios trues trass terse torus tiros taros drossy drowse tressy hydrous tars tors tres terce tyres tiers tares tarsi dress trice trews tears dorsa tires trays torso trace toras trees torrs tahrs duros tores tries trooz treys torsi