Start with high-confidence social psychology books, then narrow by subgenre or adjacent topics.
The Grieving Body
Mary-Frances O'Connor, HarperOne
The Better Angels of Our Nature
Steven Pinker, Arthur Morey
Decisive
Chip Heath, Dan Heath
Atlas of the Heart
Brené Brown, Gavin Aung Than
Insight
Tasha Eurich
The Culture Playbook
Daniel Coyle
Supercommunicators
Charles Duhigg
Status and Culture
W. David Marx
The Psychology Book
DK, Nigel C. Benson
The Instability of Truth
Rebecca Lemov
Leaders Eat Last
Simon Sinek
The Biology of Trauma
Aimie Apigian MD, Gabor Maté MD
Strong Ground
Brené Brown