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.
drosera drossier drowsier dorser hydrosere dresser trouser dressier terser tarsier trusser tressier tracer tracery
drosera crosser trouser rosery xerosere prosier proser grouser grosser curiouser crosier rooser carouser bursera browser arouser rouser rosier dorser hydrosere worser
dross drossy drowse drowsy druse duros