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.
reggaes regs raggees raggies raggs rakes reeks ragas rekeys wreaks rakees rogues rigs recs rags rugs recks rykes recce rakus rakis racks rugous wracks recuse rugosa roques wrecks raucous rickeys rookies
reggaes gaes daggas raggees piggies muggees moggies luggies quaggas aggies loggias gigas veggies buggies biggies baggies raggies jaggies doggies gas