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.
placet placed palaced palest placid policed pulsate pleased paliest palisade playsuit pulicide palliest pulsed palsied pollist poloist pellucid pilosity poolside
placet laced belaced palaced placed relaced scilicet solaced dulcet
place palace palais palazzi palazzo pilaus pilaws plaice plays plaza pleas please splays