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.
mongol monocle mangle mingle manacle maniacal
mongol angle singly wrongly pungle longly mingle bangle bungle fungal gangly hangul ingle tingle tangle wangle dongle shingle dangly gingal jangle jingly single wrangle anglo kingly mangle jungly jungle cooingly jangly jingle jingal tangly dongola tingly dingle wooingly dangle shingly
mongo mongoe manga mango monk monkey mungo muonic among