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.
morale moral morally morelle morulae merle morel mural morula morello marl merl marly merely merrily
rale morale chorale rial gyral coral real parole curlew rule horal neural burley frail moral rail graal role oral rile corral pyrrole gooral drail farle trawl choreal kraal choral charlie zoarial woorali ureal seral crawl loreal dural prole parle sural ferial mural ferrule cereal viral carle brail jural aerial parral hurley curial craal grail rural chiral orle boreal boral girlie goral ferule ferlie gharial oorali drawl virile aural barley curule burial birle puerile merle brawl serail loral narial surreal irreal areal parley feral trail trial serial urial charley derail chorial
morae mora moray mor mara moira moirai moire moor moory more morro morrow mura