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.
carobs carbs carbos carboys caribes curbs garbs cribs crabs carabaos caribous corbies grabs grubs kerbs grebes krubis
robs carobs burbs aerobes forbs verbs herbs carbos barbes grabs curbs kerbs orbs sorbs drabs drubs urbs shrubs crabs barbs arrobas cribs airbus rubs robes ribs carbs rebs arbs garbs grubs mihrabs probes darbs dribs turbos cherubs yerbas
carob carabao carb carbo carboy caribe caribou scarab scarabaei