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.
forebode forbode forebody forbade forbad forbid fireboat freeboot ferryboat verbid
forebode rebody forbode forebody prebade
forebay foreby forb forby freebee freebie