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.
cursory cursor curser courser curiouser crozer cuirassier crosier corsair crosser creaser crasser crozier coarser caresser creasier cruzeiro crosshair coercer crazier cruiser gorsier greaser grocery grosser
cursory bursary cursor nursery derisory
curs course curassow cures curios curiosa curious currs curse