There is a good way to install Latex to avoid many junk of libraries under Linux:
apt-get install --no-install-recommends texlive
apt-get install --no-install-recommends beamer
With this method, it can run well on any Linux machines, even on a low power raspberry PI. With this installation method, you can be sure that your book editors or manuscript publishers will not complain of not being capable to make a PDF out of your source file.
In beamer there is a lot of default theme with this minimal installation method.
However, I searched into the directory /usr/share/texlive/texmf-dist/tex/latex, but it seems that there aren't default themes for Latex, for instance reports, articles,...
It is actually good, yeah, because we asked for a minimal installation.
I am expecting that I could have maybe not found if there are few beautiful latex default themes, for articles, books,... that are in all Linux distros for sure.
Thank you
.clsfiles in the file list of thetexlive-latex-recommendedpackage (which is a dependency oftexlive): it includes two of the most common document classes other than the standard ones (article,report, ...) found in every LaTeX installation, namely the KOMA-Script classes andmemoir. – diabonas Oct 14 '17 at 21:54