How to build a linking architecture in the most effective way?

[Ltsmz]

Hi there,

I'm creating a new website and I would like to start it in the best possible way. Content is the last of my problems, so is back links and social media. But I would appreciate your advice from an architectural point of view.

In my current sites I've been struggling organizing menus, categories and internal links in an SEO friendly way. I just haven't got it yet how to create an architecture that is both userfriendly and SEO optimized.

Could someone please give me some tips or point me to a recent article to build a SEO optimized website architecture?

How many menus in a page?
Keywords in the menu?
keywords in submenu?
Menu linking to categories or specific articles?
How many internal links?
permalinks with /category/ or /post-name/
menu in footer?
category including keyword?
categories in sidebar?
how many links is too many?
if in a page I have 101 links and nofollow 100 of them, does it count like if I have 1 link for SEO?

Basically all things related to setting up a linking architecture in a website to optimize organic traffic.

Thanks
Fabio