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.
palatine paladin platane platina platan platen platoon polytene pluton peloton playdown polyteny
gelatine palatine latina latino lattin gelatin gliadine guillotine platane platina saltine
palate plat paleate palet palette palladia plait plate plateau platy pleat splat