What constellation is opposite Capricorn?

Relatively speaking, the opposite constellation of Capricorn should be a lion, because both are kings, while the lion is a man and Capricorn is the master, so it is difficult for them to be together, but sometimes the two constellations will appreciate each other. Because I am also a Capricorn, I think the opposite constellation of Capricorn is a lion, and the strangest constellation is Aries. Of course, the opposition is relative.