There are a lot of diferents Drones in the market, but I recommend to you the Inspire 1 Drone, with 3-axis gimbal stabilized 4K Camera and others incredible features.
I have iris+, which I bought online from eBay. I also had drones previously, but I found iris+ is one among the best drones.
Different drone serve different purposes. i think you should do some write-up and list down your budget and also what you actually for a drone. For fun? for businesses? For work?