Hey guys! Now I know I'm not exactly a new player but I'm considering trying out other classes besides my Summoner/Scholar

I've seen while leveling my main, that sometimes when I play with my FC and we're doing a dungeon run the action is so fast paced that I am unable to both kite the AOE attacks and use my skills at the same time.

I have cerebral palsy and play using only one hand. My question is as follows: What class has the least complicated rotation throughout the whole game? I mean one that doesn't require lots of micromanaging etc. I've heard that WHM is such a class but it is very squishy at low levels. I'd like to try a tank but it can be very hard since tanks are leaders of the group. have to know the layout of the dungeon. know how to pull aggro etc.

Thanks