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.
reappeared rapiered repaired repartee repoured reoperate rapport report
appeared speared coappeared reappeared pared chippered loppered diapered papered supered capered speired lappered coppered kippered rapiered lippered paupered spared coopered sparred peered speered parred spiered paired zippered peppered tapered repaired choppered pard
reappear rapper reaper wrapper crapper trapper