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.
dresser dressier drossier tressier dorser trusser drosera tressure tressour drowsier hydrosere terser tarsier trouser treasure treasury tracer tracery
caresser presser dresser tressier drossier creaser prissier pressor grosser greaser grassier crosser cuirassier harasser verser foreseer brassier dressier reissuer terser crasser trusser
dress dressy dares daresay drees dries dross drossy dures duress tress tressy