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.
pesetas pests pastas pestos pesades possets posts pseuds posits poussettes pistous pseudos posadas pasts pastes pastis pistes pasties posties
pesetas sets vestas vistas hostas cassatas cossets gussets fiestas miseats pastas mozzettas besets knessets possets resedas rosets cestas diastase tassets missets eustasy bassets cuestas assets seats zetas suets stoas stays mozettas setts cosets casitas keysets misseats bassetts reseats resets russets siestas disseats tsetse
peseta pest peised pesto pesty upset pst