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.
snores senores senors snares senoras seniors sonorous sceneries sneers sonars seiners sinners sooners sunrays sunrise senarius cinereous scenarios
senores snores coenures binaries canoers joineries canaries noirs noris inures gunneries enures pineries laniaries pawnors seniors minors venires manors snares deaneries tanneries tenours wineries fineries beaneries canneries nunneries genres juniors honors honorees honours henneries henries penuries vineries nares sceneries manures senoras hymnaries senors quinaries veneries nereis donors tenors tenures shinneries
snore senor senora snare sunray