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.
rooks rookies rocks rocs reeks recks racks ricks rykes rakes rucks rakus rakis ruckus wrecks rekeys wracks rugosa rogues rakees roques rugous wreaks rugose wricks raucous rickeys rags recs regs rigs roux rugs
books nooks shooks chooks rooks hooks cooks looks sooks gooks kooks zooks sokes gowks hocks cocos hookas bocks goos knocks jouks socks woks locks logos okes bookoos zouks tokes oaks chocks gogos yokes howks pocks boocoos jokes souks cocks coos mocks cokes hokes nocks mokes goose soaks locos okas goosy pokes rocks docks cuckoos shocks jocks yocks chokes yoks
rook rookie rooky rock rocky broke brook brookie iroko crook grok troke