Office SharePoint Sharepoint wiki library not available

I'm pretty new to Office 365, but I have a Premium Business License that also includes Sharepoint.

I have created a new site, based on a topic communication model, in which I would like to add a new page as a wiki page library, in which I can put documents and related knowledge with this site.

However, I do not know how? It should be possible to add it as a new application in accordance with the following Microsoft Technical Support article:
Create and edit a wiki

But my problem is that I do not see any wiki page library when I click on Add Application. And I do not think it's a problem of authorization because I am a global administrator of Office 365.

I've spent hours on Google trying to find a solution, looking at different options in the admin section of Office 365 and Sharepoint, but I can not find the wiki page library …

No advice?