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