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.
repined repinned reopened repugned repand repaint ripened reappoint repent
pined repined spined opined poind weaponed happened deepened pained paned peined pinned lippened repinned ripened spinet opened deponed reopened cheapened
repin repine rapine rapini orpin orpine