A few good podcast suggestions:

Everything Everywhere Daily for general information and topics. Has history, STEM, philosophy, culture, etc.

Portraits of Liberty for history, philosophy, and economics. Fantastic work on niche thinkers and activists through history.

Lex Fridman Podcast for interview about life, the universe, and everything. Fantastic stuff.

I know these aren't books, but they are great ways to become more generally knowledgeable, which is always good.