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.
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cassinas sins essoins fissions fusains hessians caseins casinos eosines cosines cassines lysines missions paisanas piscinas resins cessions scissions sessions cuisines basins eosins quassins snaws sinus sinhs sines cassenas sains asanas cousins cassinos lysins osseins passions raisins rosins sasins seisins usneas
cassina cassine cassino caisson casein casini casino cassena cassene