The biggest struggle for controller players is working on swapping between targets while cycling abilities without any down time. This takes a bit of practice to get a hold of so until your comfortable with it, classes that minimize swapping targets would be best.

Scholar is great for controller players where you can strictly watch the tanks while the fairy does a good amount of group healing when needed. It's a weird trade-off where it will be very easy to become a decent healer, but it will be very hard to bring out the classes full potential.

Bard + BLM are also perfectly fine for controllers. The most swapping they will due is placing dots on multiple mobs if desired. Bard is great for positional awareness as they can move while attacking so there is less to think about there. On the other hand, they are often called for silencing mobs and playing songs so you will have to be aware of those situations to a much higher degree. BLM is strictly "plant your feet and go". Once boss fights start to require a high degree of movement, there will be a big learning curve on figuring out how to work around that. Until then, it will be rainbows and sunshine!