Lenovo/Thinkpad will certify certain models for use with Linux, other brands sell Linux laptops. Those are obviously good indicators that those models should be safe to choose. More generally, the more popular a model is, and the longer it’s been on the market the more likely they are to be compatible, just because they are in people’s hands and people tinker with them and add stuff to the Linux Kernel. So stay away from the latest model that is uncertified, and don’t choose the flashy, overpriced model that will see poor sales.