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.
ladened leadened latened loudened latent
hoidened reddened deadened loudened maddened widened soddened ladened saddened leadened hoydened neatened whitened deaned pudenda addend kittened quietened dined fattened battened latened denned headend pattened addenda redenied mittened denied tautened heightened rattened
laden ladino laten leaden loden olden