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.
bonsai bonaci boons bonus bones banzai bonnes boonies bans buns bins bens bines banes bunns beans bunas banns benes bonze bennes bennis bounce bouncy beanos beanies bennies bunnies
bonsai nazi unsay donsie nisi ansa ansae banzai bonaci hansa gainsay lanais mensa mensae sansei sensa sensei sonsie unais chainsaw
bone boney bonne bonnie bonny bony boon ebon ebony