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.
serosae serosa serows serous sers serious seers seres zeros ceros suers sears saros serais zeroes sieurs cerous series seeress serries cirrose sierras sorrows sirs sris sorus sours ceres sores soars suras sires xerus soras sirees surras sarees cereus cerias sirras surahs cirrous sauries sirrahs sirrees soirees souaris surreys
serosae rose triose drowse cirrose brose serosa rerose prose morose rouse ariose arose arouse roose rearouse bursae erose gyrose carouse crosse crouse curiosa grouse porose browse torose ursae