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.
wushu wash wish washy whish wisha woosh whoosh wich
wushu beauish choush tushy sushi bushy hush cuish cushy gush bush lush quash mush mushy push pushy rush rushy tush gushy shush