On the topic of A-Rank Tiers (Updated)

Please place story ideas here: I will make a poll for you all to decide on which story idea people would like to see started.  (Expected poll release date: October 24) 

-I'll write out a prologue for the New story which will be placed in the category of D-Rank upon release and will move up or down the ladder based on popularity.  

Some Ideas from other users already: 

 Sanguinus: A Warhammer crossover relating to Sanguinius and the Blood Angels (Currently in the midst of going through Warhammer's lore- There's a lot of it but it's pretty enjoyable.) 

 Sanguinus : A Vali and DxD story where Vali's the main character with God as his companion. AU where Vali doesn't possess the Divine Dividing and Devil's are actually 'Devils.' 

Dalton: Azur Lane or Girls Frontline crossover with Fate- Shirou Emiya becomes the commander in a world with little magic

Awareness Bringer: Overlord centered story regarding a reusable item that can change Ainz's appearance and mentality into that of a Human. 

Alex Keller: Fate/RWBY crossover: What would happen if those gods didn't really revive the Ozma that Salem fell in love with? They created humanity there, and they already proved that they are idiots. So what prevents them from creating Ozpim to torture her thinking that her love betrayed her? and that's why she did everything she did. "For white hair, I would say that Ozma is Emiya or at least one Shirou with white hair." And what would happen if she found him again, recognized him, understood all this? (Peace can be brought in another way, although the destruction of the relics would surely continue as Shirou would not allow the age of the gods to return after proving how they are.) He would be a Villain in the eyes of many in the process I suppose . Or so I think. 

Personal Suggestion: Fate/Shield Hero crossover. 'Hero of the Sword' compared to Hero of the Sword. A Nameless Hero brought into a world facing catastrophe