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.
pontil ponytail pantile pintail pentyl pintle pointelle poundal panatela panetela hypnoidal panatella panetella pinnately pinitol
gentil dentil lentil pontil until pintle fontal quintile nattily gently jointly cantle quintal auntly entail quaintly mantel snootily pentyl ponytail riantly centile santol snottily dental lintel mental cental nuttily rental faintly fantail quantal cantal gauntly hantle inutile gentile saintly daintily quantile ventail entoil lintol mantle pantile pintail jauntily knottily gentle nautili wintle
pant poind punty punt pound ponied pond pointy pointe point pinto pantie pinta pint pent panty panto punto spondee