Studying a topic using multiple book sources

I have been highlighting books to make notes based on quotes (including meta data) using the below methods by @Nabhan

I would like to pull that information into topical documents as a part of studying and make flash cards.
Not sure which is the best way to go about this or if there is a better way?
Anyone do anything similar who can give me pointers ?

Thanks

The Zettelkasten method in any form would serve your purposes. Search this forum, the RemNote discord, and read\watch the materials here.