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.
chomped champed chumped shampooed
comped romped whomped chomped impede pumped humped ramped mumped mopped amped bumped vamped tumped moped damped pimped limped camped lumped imped dumped temped umped gimped tamped whumped jumped champed lamped wimped chumped
chomp champ champy chimp chump