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.
peltate plated pelted pleated plotted platted plaited playdate pileated pelleted palliated plateaued paletot piloted pleaded palleted polluted plaudit
peltate collated dilated delated dealated solated slated related plated militate gelated lated violated fellated elated belated alated dilatate chelated