Which of the twelve constellations is the best match together?

Among the twelve constellations, Libra and Sagittarius, Scorpio and Capricorn are the most collocated constellations.

Libra and Sagittarius: Libra and Sagittarius are both air signs. Both of them regard each other as sheep on the hillside in their feelings and talk about "free-range" love. You don't interfere with me, and I won't interfere with you. Libra loves to have a sense of distance, almost like flying a kite. Sagittarius doesn't care so much about love in his mind. Eat, drink and be merry is their goal. People who put happiness first are as comfortable as cotton.

Scorpio and Capricorn: Scorpio is emotional in love, and Capricorn is passionate and emotional in love, but they are all in the bottom of my heart. Capricorn and Scorpio are possessive of each other. Compared with other constellations, this pair prefers to hold each other tighter and happier, possess each other and love each other deeply. The couple are basically affectionate together.

There are also some stable collocations, such as Virgo and Cancer, Aries and Leo, Aquarius and Libra, Taurus and Leo and so on. Seemingly restrained, they can complement each other perfectly.