If you liked
Psycho-Pass
|
...then you might like
Cyberpunk: Edgerunners
|
If you told me these take place in the same universe I might believe you. Psycho pass is a lot less flashy and a little more contemplative, but both are adult, violent, and about free will in a dystopian cyberpunk city.
If you liked
Hellsing Ultimate
|
...then you might like
Youjo Senki
|
Similar: Fantasy warfare that renacts world war era europe tropes and conflicts, both have characters that are completely debased and crave violence, mass murder, horrifying nationalit fascist villains, the best part of it is the action and insane overpowered MC. Different: Hellsing has vampires and zombies. But don't be put off, this isn't the vanitas type, think more castelvania-- If the castlevania characters had full auto weapons and led world war fleets into battle. Also, Hellsing isn't an isekai, but come on, you have to be a little isekai'd out by now.