Wiki Pages or Wiki SIte

Hello:

I am new to the WIKI thing and was trying to get more info but it is proving quite difficult.

I created a bunch of Wiki Pages, but then creating access to them is not great (or with my limited knowledge i am not doing right) I added a Document library we part to the Home page, but: to get to the Wiki pages i have to give access to the "Site pages" document library, not great. If i create a View, then that view is not only for the Home page it changes the view on the main library too.

Also, when creating a template, can the metadata be added at this point? because that is the other thing, when saving a page, if we have Choice options it is not great.

And then i saw this "Enterprise Wiki" as an option when creating a new Site, but cannot find any literature on that.

Any help will be sooooo much appreciated! thank you all