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.
shackos shackoes shacks shakos shakoes shucks shocks shakes shicksa shogs shags chocks chicks shikse checks sheiks shooks chucks chicos sheikhs shikseh chickees chuckies showcase shiksa
wackos whackos shackos sickos shacks cacaos tacos shackoes backs packs wracks makos buckos hacks geckoes shakos geckos jacks jockos whacks racks buckoes wacks wackes tacks sacks macks knacks lacks quacks guacos cuckoos shakoes yacks cos kos
shack shacko shake shako shaky shock shuck