MicroscopicContentExpansion VS KineticistExpandedElements

If you can have mods, you can throw them via Toggle throwable weapons and then use vital strike and ricochet them to other enemies via Startoss Style.

Microscopic Concent Expansion adds dimensional assault feats for monk, letting them teleport around before each attack, nightcrawler style.

Ciar, to anti-paladin with microscopic content mod...

Totally optional but also microscopic content and Respect mods, so i can use antipaladins, or turn one of my graveguard into my worshipper, ect.

You already get Regill who is Lawful Evil Hellknight which is about as close to antipaladin as you can get without the Antipaladin mod. But "half cleric + half fighter" is pretty much Warpriest in a nutshell. So I'd consider Champion of the Faith: it ticks off the boxes of "melee DPS + divine magic + Smite Chaos."

Microscopic Content Expansion: https://github.com/alterasc/MicroscopicContentExpansion

microscopic content i use this with my lich run because it's adds antipaladin class... so i can make my ex paladin graveguards my own antipaladins for reinforced power fantasy.

extended kineticist elements just as the name implies, more kineticist elements like void, wood, aether

I don't know your view on modding OP, but if you are cool with them, check out Kineticist Elements Expanded and DarkCodex. I am not the author of either mod, but after I found them I refuse to mess with a Kineticist without them.

KineticistExpandedElements adds the Void element which can get you a Kinetic Blast that deals negative energy damage as well as utility wild talents like Corpse Puppet that allows you to raise skeletons.

I'm primarily looking to boost the damage of Negative Engery Blast from the Void element added by KineticistExpandedElements

Most of the greatest mods for WotR are actually maintained on GitHub now and not Nexus, so you have mainly : DarkCodex from Fumii who did en nice mod for Kingmaker ExpandedElements Tabletoptweaks change some things also but nothing compared to the other two.