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.
chimbs chimes shims chums chams chymes chemos chemise chymous chamiso chamois chamisa chamise chammies shimmies shams shames shamos shamus shawms shamas shmoes shammas shammes shammos shamois shamoys siamese shammies
limbs chimbs vims aims limos mimes mambas nims limbos limbus limas rims pimas sambas simas wombs jambes coombs zombis gambes dims combos dumbs combes tombs combs whims jambs chimes gombos kombus jumbos sims gumbos maims nimbus mambos numbs iambs limes limbas rumbas rimes sambos lambs hims bombes gambas dimes gambs dumbos bimas times bimbos umbos coombes whimsy bombs ambos iambus shims
chimb chime cham chammy chemo chum chummy chyme shim shimmy schmo schmoe