Does anyone know of many esoteric books?

Not looking for anything to do with the new age movement, but more so the occult. Most of the older texts that I know are authentic are in latin and extremely expensive. I'm looking for books that aren't the go to's for most people, the ones that aren't your best-sellers, but kept by the people with the personal intentions of self-work, not gain. The Kyballion was my first start a while back, as well as "Three Books on Occult Philosophy," but I feel there's definitely more.

As with any books I know they all have some truth, surrounded by intentional corruptions. I'm just looking for any books that aren't going to cost an arm and a leg and not be some new age or ego booster material for self-gain, or just telling me what I want to hear.

Does anyone in the serious study of the occult know any books for beginners?