(Dregoga) Best places to find enchanted books?

I'm already in midgame and still no source of lifesteal in my hand yet.

I've done librarian, battle tower, college of evil, mega battle tower, the four towers. Not to mention I haven't found a single library yet despite have found a lot of villages. I've roam the end and still nu uh no vampirism or lifesteal. So I need more sources of enchanted books.

I have luck magnification 2, four leaf clover, skull of luck +0.2 in my off hand and 3 baubles with luck quality. Yet still so unlucky with books but higher amounts of treasures 🤣🤣🤣