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.
reloader relater realter realtor relator reletter
loader reloader alder golder gladier coleader clowder folder floater bolder bloodier bloater blader bladder balladeer balder ladder older leadier leader lauder lader flooder holder colder gladder gloater molder pleader polder louder plodder solder
reload relaid relate prelate preload