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.
essoins eosins essence esnes
essoins sins sons hysons caissons sinus fissions casinos liaisons quassins cuisines cosines cassines sinhs fusains sines lysins mesons osseins poisons reasons rosins sasins seasons sessions disowns sains sones sonsy lessons seisins resins cessions passions raisins masons missions bassoons cassinos lysines scissions foisons sozins gossoons basins cousins eosines eosins cassinas bosons caseins bisons hessians weasons