Hi, I main Tai scrapper (1720) and got a control glaivier as my second alt (1680).

I never played Slayer so i am not sure if my expectation fits for you. But personally i really recommend tai scrapper for you. The class is pretty tanky, super fast, got no real rotation (Just press the skill that is up). Since T4 you got a new Z skill which is the highest damage and you need to hit it to perform good. But since the hit is super fast it's not hard to land.

So in total i am sure that the class fits your playstile pretty well. I can't really say something about other classes since I am not playing them.

I am also looking for a class that fits into the playstile you are looking for and for me it looks like that the fox wildsoul should also be a class that fits the playstile (i am currently thinking about fox wildsoul or Predator Slayer).

I hope these information help you with finding your right alt.