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.
meshy mesh mashy mushy mash mosh mush mashie mach much
meshy shy sheesh tushy dishy dashy rushy shay ashy beechy bushy fishy cushy leash gushy mashy mesh mushy pushy reechy resh sashay deash techy washy yechy