What you want is a Rolling Release Distro, like Arch or Gentoo, then you can add whatever GUI you want on top of it, I like XFCE as a sibling comment mentioned.
Another good example of a rolling release distro is OpenSUSE Tumbleweed. It has less of a DIY culture than Arch or Gentoo and the installer will install a graphical desktop by default so arguably it is closer to what the parent poster was asking about.