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.
loud lude load lode lout loid leud laud looed lad lot lid led litu latu lade lady lido loot lied lewd loti lead lota laid lute leady lotah lotte lotto lutea wyled