To dive into Emotional Intelligence, here are a few resources that we recommend:

Readings
What Makes a Leader - HBR article by Daniel Goleman
Difficult Conversations: How to discuss what matters most - book by Stone et al
Psychological Safety - What Google Learned in its Quest to Build the Perfect Team - NY Times

Videos
Making Relationships work - Four-part Lecture video  - John Gottman
The Power of Vulnerability video - Brene Brown

Practice
Emotional Intelligence is learned by doing. To enable your practice, consider participating in Include's monthly tgroup.