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.
squids squads scuds skids squats skidoos skiddoos scads scuts skits scouts scutes skites scotties sickouts
quids guids squids equids liquids quods squads qaids scuds guides mucoids gudes kudus fucoids kids quads cutis cuds caids aikidos agoutis kudos hyracoids gauds skids quits