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.
morula morulae moral morel morale morally morelle morello marl merl marly merle mural merely merrily
ferula morula neurula torula morulae trull gruel pyrola parlay neurulae ferulae curule ferule ferrule ruly rule torulae cruel truly
mor moira moirai moire moor moory mora morae moray more morro morrow amour