If you are using TeX or pdfTeX, you can load one of several packages to set your default document font to a Garamond. If you are using LuaTeX or XeTeX, you can choose from any font installed for your system.
Here are some options for the traditional engines. The LaTeX Font Catalogue can be used to find information about TeX fonts for these cases.
This would be my preference.
This is an extended version of EB Garamond which ignores the font's typographical context.
This is a new package about which I know nothing.
In the code below,
ebgaramond is enabled. The alternative lines for the other options above are commented.
CormorantGaramond are included in current TeX Live, but
garamondx can't be. If you want to use this package, download the
getnonfreefonts script and use it to install the package. Licensing means it cannot be included in the main distribution.
The quick brown fox jumped over the lazy dog.