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