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.
mango manga mongo mungo manioc mongoe manioca miaouing manic maniac manque mooing meouing mink monk
quango tango mango congou pang mungo lang liang manga congo mongo pengo chang lingo kiang rang sang dang tang hang jingo anga baaing vang lanugo mongoe gang banco fang bongo bingo bang fanga fungo tanga nonego panga pingo wrang sanga dingo whang yang
man main mana mane mania manna mano many maun mawn mean meanie meany moan