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.
nibbed nabbed knobbed niobate niobite nobody
bobbed jabbed dibbed nabbed mobbed robbed rubbed fubbed ebbed gobbed hobbed bibbed subbed jibbed tabbed jobbed gibbed cabbed ribbed fobbed lobbed gabbed dabbed webbed fibbed knobbed tubbed sabbed sobbed nibbed dubbed bed bead babied gybed gobbet hoboed seabed bedu gibbet daubed ebbet tubed tabued sabed buboed rabbet abed robed rubied cubed boobed daybed lubed lobed jibed gibed tabbied lobbied