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.
abed abet abate abide abode aubade aboideau aboiteau abut abbot about
bed fobbed cubed gobbed bibbed bobbed jobbed ebbed fibbed boobed sabbed seabed subbed robed daubed ribbed dibbed nabbed tabbed mobbed tubed lobed abed hobbed sabed cabbed gabbed jibbed jabbed jibed gibed gibbed gybed rubbed sobbed fubbed robbed dabbed nibbed daybed knobbed dubbed lubed tubbed lobbed webbed