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.
carronade carinate coronate carnet crownet crooned crenate grenade cairned crowned crunode coronet coronoid careened craniate corned ground cornet craned garnet crinite crinoid currant current grandee cornute groaned groined courante crannied guarantee grand grind
carronade coronate grenade marinade pronate serenade