It really depends on a few factors..
• What course are you doing?
• Do you need any specific features? such as a DVD Drive, Specific amount of USB Ports, HDMI/VGA, USB C etc.
• Do you care about going Used instead of New? Possibly buying an older, possibly bigger and heavier flagship laptop which will compete with newer laptops.
I mean personally I use a workstation but for mobile use I use a modified Thinkpad T430 from 2012 but still competes with mid tier laptops from 2018 for a fraction of the cost however I can understand if you don't want to deal with a heavier laptop which needs modifications such as Upgrading a socketed Processor or upgrading the display to something usable (The original T430 display is awful).