$2000 should get you something pretty nice. Do you have anything specific in mind that you’re planning to do with it? Important stuff to keep in mind up front, in no particular order: do you play games? How big should the screen be? How long do you want to use it on battery? Any operating system preferences?
I always thought the GameCube controller was ridiculously comfortable and ergonomic, so that’s my choice. The C stick might not be for everyone though.
Any Dreamcast fans here? Those controllers had similar ergonomics in the hand, although the lack of a second analog stick was a pretty big drawback in hindsight.