O Unus, you offer such Beautiful, Horrid, and fascinating things....
Anyhow, on with the list.
The terrifying ethereal menace of the Void Creeper/Strangler/Preserver (Three variants)?
The "reeks of desperation" Deimos worker's "Luddite Rifle"?
The horrifying randomized wormlike abomination, the Inprobocyte?
The tandem wage-slave hunting unit, the Jailor and Sniffer-Proxy?
As to why this order? Simple, The Void Things offer a fabulous collective of potential nightmares.
The Luddite Rifle? 1. It expands on The Starborn Brigade. (which i.m.o. is one of the most Iconic things you've ever made.)
And 2. I have a soft spot for makeshift weapons.
As to why the Inprobocyte is so low on my list? To build antici----------pation~
And finally, the Proxies. Simply because we just got a lot of Corpus material due to Fortuna (and the Soon upcoming Jupiter rework.)