Hello, I am looking for a skeleton or theme with the following features, thanks

Hello, I am looking for a skeleton or theme, easy to configure that has:
1 Menu Pages
1.1 Two levels deep of Subpages (Sub Menus)
2 A blog, as one of the Menu or Sub Menu item, with pagination
3 Is there a Course plugin? I have not found any on the downloads.
4 Is there a stand-alone online chat plugin? Because the ones that I have found on downloads are connectors to live chat services, am I wrong?.
5 It would be ideal if the theme has some documentation
Thanks and regards
joejac

I will be following this topic, it could help me for one of my project. In my website I use QUARK, have you try it, it could answer what you are looking for.

Thanks @ArthurCa and sorry for my delay to answer. I have seen the 3 Grav Skeletons based on Quark and it is not what I am looking for. I selected Mache theme and slowly adapting it to what is needed. Thanks again.

I have seen very nice themes but they are not yet ported to Grav. I have to find the time to make a deep study and practice of Grav and programming concepts to be able to port one Theme I like. I have seen Material Template and it is nice.
Regards