I play on PS4 as well. I have one generic hotbar for all classes with sprint, food, markers, mount, emotes etc on it. I then have a class specific hotbar for each class.
I've managed to get away with having only 1 hotbar with dragoon and paladin at 50.

You have 16 slots to work with if you don't want to be cycling through hotbars.
You just have to utilize macros. My 2 main combos for both classes only take one spot each. I put all offensive cooldowns, healing buffs and defensive cooldowns in a macro together to only take one spot. You can use an abilities image for the macro icon so you can still see the cooldown timer when its on your hotbar.

The biggest disadvantage to this method is with the combos. Since you can only put /wait in for .5 of a second, skill speed does absolutely nothing. You'll always have to wait 2.5 seconds between attacks.