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.
bosuns bosons basins bisons bossiness baseness bassness bassoons biasness business busyness booziness bioscience besnows bizones
bosuns suns eosins esnes foisons hausens caissons gossans bosons liaisons lessens mesnes messans paesans poisons raisins resins sasins seisins lysins basins bisons lessons sons sins saunas sans hysons cousins sunns quassins loosens masons mesons mizunas paisans puisnes reasons rosins seasons weasons