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.
leeched leched leached letched latched leashed leachate lashed lushed latchet licht
eched leeched teched leched peched douched poached miched pouched ached matched fetched bitched echoed hatched niched beached leached bached latched mouched notched patched coached tetched watched couched ruched batched etched pooched reached hotched hitched pitched cached itched peached ditched wretched roached mooched ouched hutched meshed vouched letched botched retched reechoed touched witched
leech lech leach leachy letch fleche fleech