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.
rookies rooks rakes rykes rocks rakis roques rakees rogues rekeys raggies rickeys regs rocs recs rigs reeks racks rucks rakus recks ricks rugose rugous recuse rugosa ruckus wracks wreaks wrecks wricks raggees raucous reggaes
hookies nookies bookies rookies cookies pokies okes bikies hackies cookeys sickies mokes cokes jokes hookeys dickies pokes quickies chuckies hickies tekkies gawkies tokes chokes kikes duckies skies jackies hawkies okehs hokes sokes pokeys luckies yokes kis
rookie rook rooky brook brookie crook