Others have already recommended great resources on the Olympic spirits and I would not personally have anything more to add to that. A lot of what you have read so far seems to be focused more on a lot of Judeo-Christian oriented magick with Kabbalah and grimoires. I suppose the big question is what your goal is? If it is to learn and expand knowledge, then you have an entire ocean of books to read. However, if you want practice and expansion of knowledge, then maybe a structured approach might help out.
Personally, I would get acquainted with some foundational texts on what magic(k) is precisely. Texts that are agnostic to tradition or religion are the best for this and will equip you much better with what you read later. These types of texts might even make you understand the books you already read in another light. Some well known and recommended examples would be:
1. Magick in Theory and Practice - Aleister Crowley
2. Initiation into Hermetics - Franz Bardon
3. Liber Null and Psychonaut - Peter J. Caroll
4. The Kyballiion - Three Initiates
5. Modern Magick - Donald Michael Kraig
Everything on this list except Liber Null are leaning towards the western tradition of magick which includes Kabbalah, astrology, alchemy, hermeticism, etc. They are about as general as it gets within this western context and will help you a lot with understanding the other books you have read. Liber Null is a bit of a special case, since it is a foundational text for Chaos Magick. It is something I have only flipped through a bit, but I do know that it tries to extract the essentials from every major Eastern / Western magical system and teach them to you. This is helpful since these essentials can be applied to any other system in some shape or form. There are other similar books of course for foundational purposes, but these are the ones I can think of off the top of my head.
After this, it really depends on what you want to read. You seem to have some interest in Kabbalah, so maybe something like "The Book of Self Creation" by Swart would be a good book for you as well. It contains a lot of foundational knowledge on authentic Jewish Kabbalah and practices that I find very unique in what is available for modern Kabbalistic literature.