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.
almahs almas almehs alms almes alums alamos alliums almuce
almahs lamas ulamas dilemmas lamias lemmas limas limbas llamas loumas lumas almas almehs bulimias halmas gliomas kalimbas kalmias dolmas ulemas
alma almah alamo alme almeh alum