Originally Posted by
Gemina
Basically play any job with a high APM such as AST, SMN, or GNB. Another would be jobs that have you keep track of multiple resources. SAM as an example is considered a really straight forward job, but the skill ceiling with it is quite high. As the easier a job is to play, the easier it is to also screw it up. You have a DoT upkeep, a speed buff, a damage buff, three combo finishers, a job gauge you can easily screw up, burst phases every minute, and a self mitigation tool you should be using every time it's off of CD and you're about to take a hit.
Best of luck with whichever you choose or find.