Astrology Insight's Capricorn Love Horoscopes and Compatibility section.

CAPRICORN goes with Virgo, Pisces, Capricorn and Scorpio (best match is Scorpio)

Best Match For Capricorn Is Scorpio
These two can not only understand one another extremely well, but can actually match sensitivities and emotions, almost (if not actually) on a psychic level. A very long lasting relationship, these two seldom ever break up.

Worst Match For Capricorn is Aries
It is doubtful that you two will ever go any further then the casual conversation. You two clash in a big way, in fact there may be a tendency to get angry with one another for no apparent reason. Unless the Aries has some status or money, the Capricorn won't even look your way.