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.
spoiled spiled spilled spooled spieled speiled spoilt suppled sepaled spelled spalled speeled sepalled sepaloid spilt spoliate supplied sepiolite spelt splat split
spoiled piled pilled poled polled pooled cupolaed peopled repolled speiled spieled spiled spilled spooled uppiled
spoil spail speil spiel spile spill spool