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.
fusains fussiness fascines fissions fuzziness ficins foisons feasance foziness
fusains sains sans sins fissions cousins hessians gossans caseins lysines cassinas niacins eosins essoins messans paesanos paisanas paisans raisins rosins sasins seisins diazins cassinos sanes eosines missions asanas cosines sinus cuisines sinhs quassins basins lysins sines casinos cassines osseins paesans paisanos passions resins cessions scissions sessions tisanes