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.
tsadis tsades testis tastes testes tsetse diacids testacy testees daysides diastase disseats
tsadis sadis cedis sades saids satis soddies acedias misadds passades passados pesades posadas dissuades tsades
tsade tsadi saddest sadist sawdust sawdusty shadiest