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.
rubouts robots rebuts reboots rubatos rowboats rabats rabatos rabbets rabbits rebaits rebates rebatos rebodies robotize rebids
bouts rubouts bots buts botas towboats botts debuts butes sabots boats boots robots abuts rebuts rowboats butts jabots seaboots abbots doubts reboots showboats