For the divine council theory part a good start is YouTube videos and books featuring Michael Heiser (unfortunately he's a trinitarian) his insight in this topic is pretty good based on passages in Genesis, Deuteronomy, Psalms and Daniel.
On the other parts yes old testament apocrypha the ones that get into the territory of my last post are primarily 1 Enoch, Jubilees, Testament of the Twelve Patriarchs and Tobit. All apocrypha should be tested by readers some are good, some edifying or supplementary but not scripture level, some are partially authentic or had authentic source material but are partially corrupted, some are frauds additionally you'll have some books that are very harmonious and others that are mutually exclusive. Digging is an enriching experience. It may be hard to find hard copies that are very comprehensive but it's pretty easy to find a couple editions online or YouTube audiobooks that are free. The full version Cepher bible app has the bible and a few dozen OT apocrypha for $22 haven't read them through it but it might be nice because then it'd include a version of the divine name.
Search and read Bible verses using the popular LXX translation. Take notes online, highlight verses and save notes!
www.biblestudytools.com
^ this online Septuagint includes the deuterocanon that catholics and orthodox accept. There's a lot of other books
The Apocrypha Apocrypha means ‘hidden things’ in Greek. The Apocryphical books of the Bible fall into two categories: texts which were included in some canonical version of the Bible at some point, and other texts of a Biblical nature which have never been canonical. Deuterocanonical Apocrypha...
www.sacred-texts.com
^ some of the other ones are on this site.
This YouTube channel has audiobooks of number of them
There may be some that aren't available in those sources I'll get back with you tommorow if any come to mind. I think Jubilees is the best start if historical narrative is the first genre you want to dig into. Many apocrypha were in the kjv until the mid to late 19th century.