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.
fungal fenagle finagle finical funicle funkily funiculi finically
fungal jingal gingal jungly mangle dingle dangle single wrangle mongol anglo lingual hangul bangle bungle gangly tangle tincal tingly wangle shingle angle ingle gingall wrongly tangly tingle jangly pungle dongle dangly cooingly singly wooingly ungual jangle jingly jungle mingle jingle longly jingall kingly shingly
fungo fang fanga funk funkia funky