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.
ushers
bashers lashers noshers botchers pushers batchers coshers gushers pitchers leachers mashers touchers couchers notchers moochers teachers mushers wishers dashers washers reachers patchers catchers hitchers koshers coachers ochers bushers hatchers poachers matchers peachers etchers pishers vouchers lechers tochers kashers fishers rashers joshers fetchers quashers butchers shushers ushers watchers moshers ditchers rushers euchres shris shiers cashiers sheers chars mishears shoers echoers cheeros cheers shears ochres ichors