I agree with MythicZed thundered are the best specially female Tsunderes like Hannaman from Azure Lane that Catgirl is hysterical

my vote is here

give her issues involving her vampirism effecting her mentality or have her run into another Vampire to stir things up

B- nagatoro and friends

Reiko for sure

Berserker ability that's induced when inflicting and receiving pain or a rampage skill that's caused by receiving pain I think those would be sweet choices for a honey badger protagonist

Give him a gender!!! be interesting if he was rimiru's wife and rimiru was his wife

hey don't forget Adventure time and his Christmas List

Ratel flirting with the Vampire loli sounds like a helluva laugh great idea!!!

Raven please

See this! I just gifted the story: Potion