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.
babied bibbed bobbed boobed buboed babbitt
babied rubied lobbied tabbied bed bid libido gibbed hobbed cuboid jibbed fobbed cubed abide bead bedu boobed gybed hoboed nibbed abed lobbed rabid ribbed robed bide ceboid sabed sobbed dabbed daybed dubbed bidi jobbed tubed gabbed jibed bibbed rebid ebbed lobed fibbed gobbed mobbed jabbed bobbed fubbed gibed cabbed buboed lubed bite nabbed tabued knobbed niobite robbed rubbed cebid sabbed seabed subbed daubed dibbed tabbed tabid tubbed webbed
baba babe baboo babu baby baubee bawbee baobab