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.
gummous gummose gummas gumbos gums gaums gammas comous gombos gams games kumys gambs camos gamas commas kumiss koumys kombus koumis gamays gambas combos cameos gambes comose cammies commies cumbias gambias koumiss koumyss
gummous meous chymous timeous cymous ramous mumus moues mouse mousy ammos awmous famous hommos hummus comous gummose memos momus nimious rimous simious wammus shammos mos mus