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.
acinus acinous acinose azines azans azons asanas
acinus sinus ricinus seisins sessions rosins sasins zeins sinhs cousins quassins acinous azines eosines sins essoins ficins cassinas diazins fusains caseins zins leucins lysins mucinous muezzins oscines ozonous piscinas raisins resins cassinos sines sozins sanious casinos cions cuisines ricins zines cosines sains hessians cines basins seines eosins fascines fissions leucines lysines cassines scions missions mucins niacins osseins passions poisonous resinous rosinous cessions scissions seizins sozines diazines hyoscines