ThinkPad T440p - the new most powerful, modifiable, relatively cheap and widely available Coreboot supported laptop (thanks to Coreboot v. 4.11)! : r/linux
The MSI Prestige series, the best laptops for agile creators
A Fully Modular Laptop You Can Easily Upgrade Will Debut This Summer | PCMag
The world's most DIY-friendly laptop just got a big upgrade | Tom's Guide