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.
krubis kerbs grubs corbies carbs crabs cribs curbs garbs grabs carbos carobs grebes carboys caribes carabaos caribous
krubis rubs cherubs urbias terbias derbies ourebis rabbis rabies rubbies rubes rubies rabbies barbies rubus burbs freebies corbies curbs grubs oribis darbies drubs ytterbias urbs shrubs