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.
queasy queazy quais queys quass quays quasi queues quassia keas cues kues guess gussy gassy gawsy causey gas kas qis
queasy easy yeahs cheesy tease daisy seas cease poesy peas newsy messy massy lease leas queazy keas gawsy gassy fease ease beaus bassy pease resay sassy zoeas teas toeas sheas yeas
qua quai quay queue quey aqua aquae quack quacky quag quagga quaggy quake quaky squaw