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.
knurs knaurs knars nurse gnars nares naris nears noirs noris gnarrs nairas nairus nereis norias narrows
knurs burs muras knars murrs burse queuers lours kouros puris ours purs gaurs gurus cures pursy sieurs curs suers auris douras bourse dures giaours durrs buras ursa burrs churrs buhrs aures auras purse lures gnars mures knaurs kurus lauras kauris pours nurse purrs curse guars course ruers bursa currs sours houris suras furs duras hours duros feuars tours euros urus fours yours
knur knar knarry knaur anuria enure inure