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.
mashie mash mache mashy mach mesh mosh mush macho match meshy miche mushy
mashie tushie she techie dashi sushi rushee roshi rishi nitchie cashew hoochie heishi shoe shew shea toeshoe reshoe