Horse/Cancer and Dragon/Aries pair at 75-80%, a cross match between a searcher and a headline. One browses every crowd looking for something it cannot name; the other walks in and is the something. The timing writes itself.
Dragon/Aries leads the pack on luck and talent, in the boardroom and elsewhere, and Horse/Cancer, hauling old romantic regrets and impossibly high standards, finally meets someone who clears the bar. The Dragon's confidence is exactly the antidote to the Horse's maudlin trips into cold-storage memories.
Dragon/Aries talks in declarations; Horse/Cancer talks in moods, some of them borrowed from years ago. The Dragon's bluntness can trample a tender spot, but it also refuses to let recreational depression run the evening, which the Horse secretly appreciates.
Friction shows when the Dragon's ego wants applause on a night the Horse is grieving something old, or when the Horse's backward glances read to the Dragon as ingratitude. Both must learn the difference between a mood and a verdict.
Horse/Cancer learns from Dragon/Aries to bet on the future instead of auditing the past; Dragon/Aries learns from the Horse that feelings have archives worth respecting. Momentum and memory make a surprisingly complete pair.
At 75-80%, Horse/Cancer and Dragon/Aries have good chemistry. The Dragon supplies forward motion, the Horse supplies depth, and it holds if neither dismisses the other's tempo.