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.
foundry founder fonder funder fender finder vender vendor fainter vaunter
foundry laundry sundry hounder tundra sounder daunder bindery boundary bounder founder funder country quandary launder maunder pounder rounder cindery sunder gauntry tindery under
found fond fund fondu fondue fount fundi