Which constellation is the least indifferent?

There are also many enthusiastic and cheerful fire elephants, such as archers, Aries and lions.

Sagittarius is loyal to friends, warm and generous, and generally treats strangers. Aries is enthusiastic but impatient. The lion is generous, but not as enthusiastic as the first two.

Fire signs are generally cheerful and enthusiastic (Aries and Sagittarius)

Capricorn people are the most enthusiastic and cheerful.