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.
boobed bobbed babied bibbed buboed
lobed boobed robed bed mobbed gabbed buboed cabbed jibed bobbed nabbed fubbed fobbed fibbed ebbed ribbed hobbed jabbed abed rubied sabed sobbed dabbed daybed dubbed tabbied tabued tubed hoboed nibbed jibbed knobbed booed lubed lobbed babied lobbied cubed gibed gybed gobbed bibbed gibbed jobbed bead bedu robbed rubbed sabbed seabed subbed daubed dibbed tabbed tabooed tubbed webbed
boob boobie booboo booby bob bobby boubou baobab