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.
celom cilium slam slim slum
coelom celom elm cleome shalom helm whelm glom velum gloam coulomb coelome clomb elmy phyllome bloom loom loam gloom realm phloem kelim telome whilom sholom
cel ceil ceili cell cella cellae celli cello ocelli