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.
sheiks sheikhs shikse shiksa shikseh shicksa shakes checks shakos cheeks shacks shocks shooks chicks shucks shackos shakoes shackoes shags shogs chocks chooks chucks chegoes cheques showcase
sheiks hecks nicks peaks necks wrecks ricks seeks licks micks quicks zeks sikas dekes bikes leeks fecks dikes haikus yikes ticks kicks tikis haiks wekas ekes picks checks chicks peeks hicks pikes shikse recks becks hikes likes leaks kecks decks sicks sikes kikes leks dicks wricks reeks wreaks mikes paiks neuks geeks hoicks beaks wicks pikis shiksa pikas sheikhs pecks cheeks pekes yeuks kaiaks weeks gecks tikes keeks teaks yoicks