Both fire tigers. Is there a compatibility match?

You are also in opposition to each other from their Sun signs, since one was born with Sun in Cancer, and one was born with Sun in Capricorn. Two people born in that year cannot get along. Multiply that by a thousand, and you find out how you cannot get along. The likelihood of starting a fight against each other is high. There could be a mitigating factor if they both had married to each other in the year of the Wood Horse (2014), and each one of them get along with the entity of their marriage, which keeps them together. Or they marry in the year of the Earth Dog (2018) and the entity of that marriage keeps them together.
Good luck to both of them, as this year it was their opposite year, and they have suffered a lot.