/lit/ - Literature

Most important one because most other issues are based on not understanding the principles explained in it.
I‘d also add
The pleasure trap, lisle/goldhamer
Why we sleep, walker
Sink into sleep, davidson
The healthiest diet on the planet, mcdougall
Fiber fuelled, bulsiewicz
Anything by Gerald hüther, although i‘m not sure his work is available in english
Anything by barbara sher, a bit older but she‘s got some strong ideas and entertaining delivery
See no stranger, kaur
Conscious loving, hendricks gay
Hunt. Gather. Parent., doucleff
Radical honesty, blanton