As someone else pointed out, UHH has a drone section now and it would be an excellent place to post this question. Although, I am the mediator for the drone section I'll try to point you in a direction for a little help. As someone else already pointed out, there is a company called DJI that is probably the largest drone manufacturer on the market today. And, like most cameras, the more you pay, the better the camera is and this includes the drone too. DJI starts with a drone called the Spark as it's entry level drone and then the Mavic Air, Mavic Pro, Mavic Platinum, Phantom, then Inspire and then they have some industrial drones that are for who knows what that cost a fortune. There's no doubt that they can carry large DSLR camera payloads and have many bells and whistles. So, start by going to the DJI website and looking over the camera specs. Flight time will also be a consideration that most people think is important. There are some other done companies, one of which is designed to carry a GoPro camera. I know that the GoPro cameras are very good considering how small they are. I used to own one that I used for underwater photography and it was superb. But I sold it because I didn't plan to do any more of that kind of videography. There are some other companies that make drones with cameras but I'm not that familiar with them, and from what I've read, and what I've seen, none of them interest me. Could be that some of them might interest you depending on how much of a budget you have, how hard or easy they are to fly, and whether or not you need a good camera that has a 3 axis gimbal or not. I think the gimbal is just about as important as the camera, flight time, video and photo quality, price and ease of use. When I say ease of use, what I'm really saying is that some do and some don't have GPS and other sensors that make flight very easy and straight forward with much less risk of crashing or a fly-away. The thing that worries most of my friends is a fly-away. Nobody wants to have a $1000 simply fly away, never to be seen again.

If you have any specific questions, feel free to ask them here or on the Drone section of UHH. I hope this helps.