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.
iambus iambs imbues immies
iambus nimbus limbus kombus mus limbas bums emeus jambes imbues iambs gumbos gambs hummus muss gambes gombos lambs momus limbos mambas humus mumus coombes combos ramous rimous cymous sambos dumbos tombs wammus wombs chymous combes emus combs bombes muumuus comous muse awmous amuse amus bemuse gummous coombs bimbos jambs famous bombs limbs gambas mums ambos jumbos mambos numbs ramus rumbas sambas zombis dumbs umbos wamus chimbs shamus