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.
trouser trusser terser drosera tarsier drossier drowsier tressier tressour hydrosere dorser tracer dresser tracery dressier treasure treasury tressure
rouser trouser grouser curiouser arouser carouser courser trusser grosser hydrosere curser dorser cruiser purser crosser bruiser peruser rooser proser browser prosier rosier xerosere rosery drosera crosier nurser worser
trousseau taros tiros toros torose torous torus tours trios triose trois trows troys trues truss tyros