How to manage highlights from books I read

First, search the help docs and this forum. Maybe your question has been answered! The debugging steps can help, too. Still stuck? Delete this line and proceed.

What I’m trying to do

I am interested in a particular topic…Managing change…I read a lot of books and articles on the topic…First…I want to import relevant highlights and annotations I make into Obsidian
Secondly, I want to be able to link ideas and related materials amongst the information I imported into Obsidian…sounds like the classic use case…

Thurdly, what’s the best structure to create in Obsidian to receive the various imports from different, discrete books or articles I read…

Probably, I should do the third requirement first, right?

Things I have tried