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.
sole solei sol soli soil sola soul sloe solo slew slue sale selle sly sal sel sill syli seal slaw sell slow sulu saul silo slay seel sall sail sally seely selah silly sully zoeal
bole vole haole hole jole cole mole ole pole role sole dole tole whole