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.
glomus gloms glooms gloams gliomas glums glims glams glumes golems glimes gleams coeloms calamus cleomes coelomes galliums coulombs calms clams culms claims climbs climes clumsy kalams kelims kilims qualms kaliums kalmias kalimbas
glomus limbus shaloms celoms plumbeous glooms loams looms blooms phloems phyllomes holms calamus cleomes coelomes coeloms coulombs gliomas gloams gloms milliohms plumbous telomes sholoms
glom clomb glam glim glime glioma gloam gloom gloomy glum glume