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.
lank lanky lang link lunk liang linky langue lanugo ling long lung linac linga lingo
bank hank lank rank sank dank tank wank shank yank