If we stick to astrological descriptions 

(not scientifically documented relationships), a typical assessment looks like this:

Zodiac sign

Typical suitability as a boss (astrology) Reason.

Aries 

⭐⭐⭐⭐☆

Aggressive, courageous, initiative – can be impatient.

Taurus

⭐⭐⭐⭐☆

Stable, calm and reliable – can be stubborn.

Gemini

⭐⭐⭐⭐☆☆

Good communicator – can lack focus.

Cancer

⭐⭐⭐⭐⭐☆

Caring and loyal – can take criticism personally.

Leo

⭐⭐⭐⭐⭐

Charismatic, inspiring and confident.

Virgo

⭐⭐⭐⭐☆

Organized and analytical – can be perfectionist.

Libra

⭐⭐⭐⭐⭐

Fair, diplomatic and good at collaborating.

Scorpio

⭐⭐⭐☆☆

Strategic and goal-oriented – can seem controlling.

Sagittarius

⭐⭐⭐⭐⭐☆

Visionary and motivating – can overlook details.

Capricorn

⭐⭐⭐⭐⭐

Ambitious, disciplined and strong leader.

Aquarius

⭐⭐⭐⭐⭐☆

Innovative and far-sighted – can seem emotionally distant.

Pisces

⭐⭐⭐☆☆

Empathetic and creative – can have difficulty with conflicts.

Astrology's "top 5" bosses

Capricorn – disciplined, responsible and results-oriented.

Leo – charismatic and inspiring.

Libra – fair and good with people.

Aries – energetic and courageous.

Virgo – organized and quality-conscious.

Zodiac signs that, according to astrological descriptions, may have the greatest leadership challenges

Scorpio – can become very controlling.

Pisces – can avoid difficult decisions and conflicts.

Gemini – can change direction too often.

Aries – can be too impulsive if tempers take over.