There's no surefire way to build a successful tag team.
Complimentary wrestling styles, a collaborative moveset, similar looks, a strong grasp of basic tag psychology: each is a key component, but these things usually take months (if not years) to develop. Chemistry is vital, too. Even if a tandem ticks several of the basic boxes, they'll still falter if the members can't click with each other - as proven by Lex Luger and the British Bulldog's Allied Powers run.
Hawk & Animal, Robert Gibson & Ricky Morton, Jimmy & Jey Uso: their unions never felt anything less than totally natural, to the point where it's hard to imagine one with out the other (though Animal tried with Heidenreich). Most of the sport's most celebrated teams come from a similar blueprint, but not all of them. In fact, some of tag wrestling's greatest triumphs came from unions that made zero sense on paper, with the participants surging when all signs pointed towards certain failure.
Disparities in pushes, aesthetics, and characters meant each of these pairings looked like a terrible idea at first, but they all defied convention to forge an unlikely success story in wrestling's most storied niche division.