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.
senoras senors seniors senores snores seiners sunrays senarius sonorous scenarios sceneries sneers sonars sinners sooners snares
senoras manors tenors sunrays senors senores seniors pawnors minors menorahs kinaras noirs canoers juniors honours honors noris norias snores donors tenours
senor senora senarii senary senior snore