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.
gaums gums gams games gambs gamas gambas gamays gammas gumbos gummas gambes cams gummose gummous gambias kames camos cames camas kumys camise camass kumiss camisa koumys koumis gombos cameos cammies cumbias koumiss koumyss caeomas goombahs goombays cwms
gaums amus bams cams jams tams reams kumys beams amas gums neumes rums gambs loams maims bums cames geums miaous shames lumas numbs shawms shams chums wames tames pams humus rams whams lams mumms dumas amis sumos koumis dames lambs doumas mumus gams hames names fames iambs camas foams lums llamas gamas roams aims loumas heaumes fumes koumys ramus tamis jambs camos haems shamas neums games mamas mums dams lamas sums kames seams hams doums lames shamus wamus pumas hums pneumas dumbs teams chams shamos yams
gaum gam gum gamma agama gamey gumma gumbo gamy gammy gambia game gambe gamba gamb gamay gama gummy ogam