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.
unlade unlaid unlead unload unled unlet unoiled unallied unnailed unlit
unlade annulate phenolate vanload inlaid cannulate canulate lineolate lunulate onload pinnulate download unlaid unlead unload