On the WordPress themes page (Appearance >> Themes) you will find some bog standard themes ready to install. They follow the naming convention – Twentyfifteen, Twentysixteen and Twentyseventeen. They are very basic blog templates, but I do ‘t recommend using these as we need a website template with static pages as well as the blog functionality.
I recommend that you buy one of the themes below. I like them because they are all comparatively low cost and contain a significant number of templates to enable creation of a variety of ready-made websites, they also provide the facility to install the demo data effectively enabling you to duplicate the demo sites.