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.
fashions fusions fishiness visions
fashions cushions shines chins chinos chines chinas kachinas lesions kations machines nasions notions rations suasions tuitions shins echinus chains lashins visions cations cautions cochins coitions basions katchinas fusions lotions motions nations potions reshines zechins shoeshines