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.
roomers roamers rimers rammers reamers rhymers rimmers rummers reimmerse rumors remoras remorse rumours reimburse remarries
vomers omers roomers boomers gomers comers homers aimers womeras teemers dammers bombers numbers maimers timers seemers mummers namers woomeras dimmers rummers chimeras limmers cambers members shmears shammers rammers immerse combers ameers limbers fumers cumbers lumbers foamers lambers gummers cameras smears ombers humerus timbers reimmerse dimers wommeras chimeres jammers seamers meres emeers hammers mammers summers tamers umbers bummers chambers mimers embers roamers simmers rhymers rimers reamers ambers rimmers gamers hemmers emmers gammers cummers hummers chimers shimmers yammers
roomer roamer roomier broomier groomer