Recommendations MC involved in an organization

I suddenly wanted to read a novel where the MC is member of an organization (at least involved in it) so I'm here :>
I would rather like an evil organization (since I kinda love villains), I don't mind if it's not.

Something like Academy's Undercover Professor for exemple

 

I’m The Evil Lord Of An Intergalactic Empire! - this LN has the spirit you're looking for...
Lord of the Mysteries - Personal favourite

 

With LotM thou, he's the head. Its not really an influence on his character like being a subordinate

 

- Evade The Hero and Flee! (KN. A teacher in evil organisation)

- The Corpse Collector In Conan (detective conan fanfic. Mc is the ace member of black organization)

- The Evil Organization’s Recruitment Ad
An ordinary guy found an evil organization ad and decided to join them

- Adorable Villain: Male God, I am not Trying to Rob You (fmc. Mc is the member of an interdimensional villain club that responsible to correct the anomaly in each world and doing their job as a villain)

I don't know whether this genre is right or not, but I'll just mention it :
- Durarara!!
- Baccano!
(those two are more into mafia, gang and supernatural). You can read the novel or watch the anime

 

Academy’s Undercover Professor