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.
cloches cliches culches caleches caliches clutches cultches clachs clashes gulches guilloches calashes galoshes glitches goloshes klatches goulashes
cloches guilloches bleaches blotches filches fleeches flitches caliches belches culches liches goloshes lychees glitches gulches molochs pleaches sloshes zilches galoshes loaches lyches fleches laches latches lichees letches leeches leches cultches leaches fletches caleches cliches clutches lochs klatches mulches slatches slouches welches