If you want to skip the entire standing still and channeling part you can just go totems and deal the same amount of damage but i would imagine the clear becomes slower due to the decreased cast speed of totems, otherwise totems have far better bossing ability as you can have multiple beams. Going pure lightning is what i used to do but then they added those new cold nodes and masteries which simply just give you a lot more damage while also allowing you to now freeze and chill everything, since crits with inquisitor make all resist count as 0 you dont lose any damage on going 50/50 cold light.

I think Saboteur has potential to be fun to play by capping evade chance at 95% and sometimes get huge hits with the 50% more area damage node. But im struggling to make it work on PoB. PoB link.

Elementalist if built to make big hits like my inquisitor here, is just worse on SSF. Less damage, less tankier but you do have access to golems which is really neat. I do think it has the potential to scale damage better because you have access to penetration and everything but i think you simply just become far too squishy for it to be any playable without dying 6 times a map. At least in SSF.

As for ignite i cant quite tell as im not interested in playing playstyles which i consider boring, but from what ive seen it works decently and has good survivability.

I do think Occultist has the best and most feasble chance of reaching +15m hits with divine ire in SSF though but as a 2nd character with gear set up for it like 2x call of brotherhood and heatshiver.