Dell's XPS 13 (or XPS 15) is arguably the best laptop in general, but you can also get it pre-loaded with Linux. It's very Linux-friendly. I've also replaced macOS with Linux in the past with decent results.

I suggest going through Dell's official certified refurbished program, which can save you $1k+ and still get you a 12+ month warranty from Dell.

I did that 5 years ago, and I still use the same XPS 13 laptop today. It's not noticeably slow and is competitively light, with a 4k screen. I have the money to replace it, but just can't justify it when the laptop still works this well.

I strongly recommend a 4k screen, though.