Tiger/Aries and Dog/Aries meet at 87-92%, one Aries fire burning in two animal natures. Both charge, both mean it, and the Dog's stern moral compass gives the Tiger's banzai luck a direction it badly needs.
Dog/Aries believes in twinned souls separated at creation, and in the fearless, luck-drenched Tiger/Aries it may finally find its candidate. The Tiger loves being believed in that hard; the Dog loves a partner who never flinches. Shared Aries heat means the spark is instant and neither plays coy.
Two Aries talk in declaratives. Tiger/Aries hears what it wants to hear and barrels in on thin intelligence; Dog/Aries corrects the record with austere bluntness. It sounds like arguing to outsiders and works like navigation to them.
The snag is command. Tiger/Aries wants to lead on instinct, Dog/Aries on principle, and when the Dog rides the Tiger too hard about eternal verities, the Tiger roars. Fights are loud, short, and rarely carried overnight.
Tiger/Aries gains a filter: the Dog's skepticism screens out the flattery and false alliances the Tiger falls for. Dog/Aries learns from the Tiger's job-lot luck that not every leap needs a moral audit first.
At 87-92%, Tiger/Aries and Dog/Aries are strongly compatible, one temperament with two engines. Keep the command struggle playful and this pairing runs for decades.