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