There are many ideas about paddle technique, its hard to define which is "best" or "right" except to say whatever the rest of your team is doing is right. We are trying to emulate the Tahitian style as explained by John Puakea in this video.
Kialoa is easily the most popular paddle manufacturer in our club and other clubs in the area. They have a variety of tried and true blades.
Northwest River Supply (NRS) has all sorts of paddling gear for warmth in cold weather and sun protection in hot weather as well as a few PFD designs that are great for outrigger.
Kai Ko'o makes beautiful Custom paddles that are becoming more popular recently