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.
bouncy bounce bonaci buns bones bonus bonze boons bunas bunns bonnes bonsai boonies bunnies
bouncy jouncy wincey unci dunce zincy pounce ounce mincy nancy lunacy launce jounce jaunce fancy bounce chancy
bun bone boney bonne bonnie bonny bony boon buna bunn bunny ebon ebony