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.
tweeness tweenies tweens twines dewiness twoonies twins dwines twains deewans dewans diwans
waeness woeness tweeness wanness weenies wienies awayness sweeneys sweenies dewiness tweenies chewiness showiness