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.
gammon gamin camion common gamine caiman cayman cummin kimono commune gombeen kamaaina
gammon summon mammon common mon lemon demon mown daemon moan somoni mono simony mony newmown moon bemoan camion muon gnomon ammono ramona jomon simoon kimono cummin daimon lemony wimmin
gammy gamma gam agama cammie gama gamay gamb gamba gambe gambia gamey gamy gaum gumma gummy game ogam