what is the archetype command are you using?
with the latest version 25, you have to select the options
https://github.com/adobe/aem-project-archetype
Check the above link and the table with different options - Available Properties section:
To generate language-masters, you have to set "singleCountry" property value to "n"
-D singleCountry = n
Default Templates should be available in folder ui.content/src/main/content/jcr_root/conf/<SITE-NAME>/settings/wcm/templates
1) page-content
2) xf-web-variation
same with template types