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.
guilloches gulches culches cloches cultches galoshes glitches goloshes goulashes cliches caleches caliches clutches klatches clachs clashes calashes
cloches guilloches lochs zilches sloshes molochs filches leches liches loaches lyches belches laches blotches fleches cultches goloshes caleches galoshes gulches caliches mulches cliches slouches culches welches