I think if you want a laptop to run Linux then you should just buy a laptop that comes with Linux. There are some pretty good options out there today (Dell XPS Dev Edition, ThinkPad, System 76, etc.) that you can buy from the manufacturer with Linux.
Trying to take a laptop designed for macOS and turn it into a Linux laptop is going to be a painful and frustrating experience. It's like buying a Tesla and trying to put the Toyota navigation operating system on it. If you like Toyota's system then just buy a Toyota.