Let yourself be inspired by these few lines dedicated to the glorification of peppers. Cayenne, Thai Dragon, Habanero... doesn't matter which. Reading this will make you realize that you simply HAVE to try them !
http://www.cryogenius.com/peppers/
As a little side note : try also those small mini-lampoonlike orange-red peppers which originate in Central Africa, more precisely in the Congo if I'm not mistaken. They have a delicious aroma and are very good with grilled chicken, to take just an example.