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.
camp campi campo campy comp gamp compo kemp
amp vamp camp gamp lamp ramp samp damp tamp champ
cam cambia came cameo cammie camo