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.
solei soli sole sol slew solo sloe syli sola slue sale soil soul selle sly sel sal sail ceil seel sall slay slow silo sell saul sill seal sulu slaw
solei ole lei hole oleo doolee soli pole vole sole aioli whole polio pilei joule jole hoyle hoolie holey toile haole olio mallei mooley dole voile olea mole folio boule bole coolie foley folia role cole doolie tole woolie