Astrology Insight's Sagittarius Love Horoscopes and Compatibility section.

SAGITTARIUS goes with Leo, Aries, Pisces and Aquarius. (Best match is Aries)

Best Match For Sagittarius Is Aries
This can be an honest, fun and warm relationship. The Sagittarius will be loving enough to entice without scaring Aries off. The blend of motives for the future will tend to jive just right, and each will seem to instinctively know their role in the union.

Worst Match For Sagittarius is Cancer
Sagittarius likes to stay home and Cancer likes to roam. This can be a bit much, even though there are many ways these to ARE compatible, the big differences are at the core of their personalities, so you will likely be better off steering clear of this relationship.