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.
slaw slow slew slay sola selah sallow scilla sal sol sly sel sallowy soul sole seel soli sail sulu sall saul sill soil sale sell seal syli solo silo sloe slue sally seely selle silly solei sully cella cilia
law blaw bylaw flaw claw pilaw slaw la