Are there any systems that have esoteric, occult like magic?
Ars Magica
>>50982969
Nephilim
As opposed to what? Yea like all of them. Sometimes you don't play it that way, but you always can. I mean you can play D&D as a highly detailed, research-oriented magic system. I do. Because I make stuff up to make that work, when I'm the DM.
Anyway, as said above there's Ars but also another Rein-Hagen game, Mage: the Ascension.
Dungeons and Dragons
>>50982969
Unknown Armies. All day, baby.
>>50982969
All systems where only a certain number of people can be magic users.