You might want to try the Dell XPS 9380 Developer Edition that comes pre-loaded and configured with Ubuntu 18.04. I switched to it from a 2015 mac laptop I had

You might want to try the Dell XPS 9380 Developer Edition that comes pre-loaded and configured with Ubuntu 18.04. I switched to it from a 2015 mac laptop I had been using. Set up was pretty easy and everything just worked out of the box. It's also nice that the performance per dollar ratio is better than a new macbook pro. My only complaint is that the trackpad is a little small for my hands, but the sturdy keyboard with real function keys more than makes up for it.