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.
samburs sambars samurais samaras seamers sombrous simars smears seemers simmers summers zamarras zamarros summaries summarise cymars
samburs tamburs tambours demurs tamburas humours immures cambers reimburse combers cumbers femurs lemures lumbers mimbars ombers timbers tumours umbras gambirs limbers sambars hombres embers mures embars bombers amours ambers lambers murrs lemurs lumbars members numbers ombres rumours muras timbres umbers chambers