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