Ask HN: What is the best laptop for Linux?

Hi! I am looking for the best laptop that I can buy to run ubuntu on.

Macbook seems perfect, except for the fact that some people say I might have issues installing ubuntu on it(single boot).

The best alternative I could find is t440s, but there are some complaints about screen and trackpad.

Should I get macbook air, t440s, or there are some other, better alternatives?