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.
knave nave naive navy neve knife naevi navvy nieve novae nouveau naff naif neif nevi nova
nave knave ave pave have fave fauve eave navy save rave suave deave wave weave shavie heave cave cavie naive peavey leave reave mauve soave mavie zouave lave waive gave wavey neve shave sheave