Here is a list of thinkers compatible with your preferences, organized by area:
Mythology and Religion:
a. Karen Armstrong (comparative religion, religious tolerance)
b. Joseph Campbell (comparative mythology, the hero’s journey)
c. Alan Watts (Eastern and Western religion, spirituality, and philosophy)
Psychology:
a. Carl Rogers (humanistic psychology, person-centered therapy)
b. Abraham Maslow (hierarchy of needs, self-actualization)
c. Erik Erikson (psychosocial development, identity formation)
d. Lev Vygotsky (social development theory, zone of proximal development)
Philosophy:
a. John Dewey (progressive education, pragmatism)
b. Charles Sanders Peirce (pragmatism, semiotics, logic)
c. William James (pragmatism, functional psychology)
d. Alfred North Whitehead (process philosophy, metaphysics)
e. Martha Nussbaum (capabilities approach, ethics, political philosophy)