5 Zodiac Signs That Are Libra Soulmates Libra heart most suitable zodiac signs are gemini, water bearer, and aries. When it comes to matters of the heart, Libra seeks balance and understanding above all else. Gemini can provide stimulation and fun to the bond, while The Water Bearer shares Libra's appreciation for wisdom and innovation. Aries, known for their intensity, can ignite a flame in Libra's soul. Libra and these signs create a honest and satisfying relationship.