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.
limpid limped lampad lamped limpet lumped
limpid camped chomped wimped whomped tumped tamped damped ramped pimped mumped lumped limped lamped lampad comped jumped amped gimped imped humped vamped bumped pumped romped dumped temped umped whumped champed chumped
limp limpa lamp lump lumpy blimp