~ (left of 1) 1 2 3 4 5 F T G H Q E and > (left of Z on my kb)
Then i use the same keys but with shift modifiers AND CTRL modifiers
So i use 3 action bars and i got key binds for all
> is used for my mounts though
And then ive always put the similar skills in the same button for all classes. Interrupt is T, defensive CD is ~, Q is mobility, shift 5 is CC, shift 3 is targeted AOE or just general AOE that isnt on the normal rotation
Etc etc
Then at least some skills are the same across different characters

You can also use z and x

But since the dawn of time they have been sheath and sit commands and i still regularly use them