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.
camion cumin gamin caiman cayman common cummin gamine gammon combine kamaaina cowman cowmen kimono commune
camion mon moon mown muon amain amin amine mony amino ammino amnio famine haemin hominy mono cumin simian gammon remain tamein lemony lomein mammon newmown numina lamina domine saimin simoon summon daemon demon diamine gamin imino main vimina jimminy moan jomon jiminy imine hemin mini semina bemoan ammono ammine mien mina mine common gamine cummin domain diamin daimon symbion somoni simony rumina kimono ramona nomina gnomon lumina limina lemon domino wimmin
cam cambia came cameo cammie camo kami scam