We have included popular Google Fonts in the theme which you can change it from “Appearance => Customize => Theme Options => Font Family Options”.

If your desired font is not there then let us know the name of the font and we will add that in theme update.

If you want to add Google Font by yourself then you can do that using Google Font plugins which you can check at https://wordpress.org/plugins/search/Google+Font/

Kind Regards,
Sujapati