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.
buckoes buckos bucks bucksaw becks bikes backs bakes bocks bikies bookies buggies backsaw bookoos boocoos bogs begs bugs bigos beaks bocce bogus books biogs bekiss biogas boccie baggies because biggies
buckoes shackoes geckoes sickies rickeys chuckies wackes whackos dickies hockeys jackies geckos jockeys cokes jockos cukes lackeys luckies shackos pekoes sickees sickos dickeys buckos mickeys locoes quickies cakes cuckoos ackees hackees ficoes duckies chickees wackos hackies hickeys hickies shakoes cos kos