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.
gazettes casettes cassettes gaseities caseates gasts castes gussets gustoes coesites casts gusts coasts cosets guests
casettes fossettes rosettes gazettes poussettes musettes noisettes cassettes mozettas societies cetes settees caseates bassetts mozzettas gestes niceties suttees setts nauseates testes