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.
arenes arenas arenose arenous airns airiness
arenes gyrenes pyrenes serenes terrenes trienes carnies wryness furanes boreens cranes terreens farness fairness beeriness greenness burnies wrens freeness rareness barrenness nearness bareness guaranies terns renews fieriness grayness pureness miriness brownness brens moreness sirens soreness erns wyverns sureness arenas reins brinies wornness sorriness dearness teariness terrines murines poorness triens trainees triunes trueness tyrannies wariness cheeriness sheerness herns treens hairiness neurones phrensy airiness hoariness queerness careens dourines purines weariness drones rouens prunes brownies ranees kernes runes dourness baroness querns ternes sciurines dryness leeriness terranes greens harness neurines greyness pereons carneys pyrones byrnies bournes ernes tarriness crannies ferns goriness rawness moreens irones grannies barneys corneas taurines furriness brionies brines ironness ironies merriness eeriness lornness groynes boranes crones cronies liernes barrens baronnes preens baronies heroines marines narrowness trannies syrens kerns sereins wiriness greenies tourneys journeys mureins serines sourness direness gurneys moraines chariness trines trones tureens urines warrens chorines shrines