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.
maranta marinate marionette marinade marooned moronity muraenid mourned
maranta rant warrant truant coranto guaranty grant granita currant couranto courante courant riant jurant veranda variant errant brant arrant hydrant tyrant warranty