content: If you want prebuilt; go with Dell XPS running Ubuntu or System76 running Ubuntu (I find Systems76's in house "POP OS" to be lacking).  Basically though; you could grab a cheap $199 laptop running Windows from Wal-Mart and install or dual boot to Linux.  I would recommend Linux Mint for noobs; Debian for advanced.  Edit:  if truly interested:  YouTubers "SwitchedToLinux" and "Chris Titus Tech" both have a lot of videos on Linux, installation of Linux, pro's and cons to different distro's etc.