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.
gambs gambes gambas gams gambias gaums gamas games gumbos gamays gammas gombos gums cams goombays goombahs kames camos combs cames camas combes camass gummas cameos camisa coombs combos camise kombus caeomas cammies coombes cumbias gummose gummous cwms
iambs jambs lambs gambs camos numbs zombis hams camas rumbas llamas kames sambos limbs shams gambas mambas wamus gams rams dumbs gombos maims lamas lames shawms shames wombs umbos tamis dams reams iambus jambes fames combes teams combos names combs hames haems foams bimbos chimbs limbas coombes jams limbos lams dumbos pams bams wames nimbus limbus shamos beams amas gamas mamas roams cames bombs seams ramus tams loams jumbos aims sambas chams kombus gumbos gaums games coombs mambos cams bombes shamus ambos amis amus gambes dames tames tombs whams shamas yams
gamb gambia gamba gambe gam gamey agama cambia gama gamay gamy gamma game gaum gombo gumbo gammy ogam