The Gates of Daylight: Even the Gods Will Kneel at My Feet

Looking for Novels About Classic, Hard-Core Anomaly Containment, Like SCP

Ideally, an ensemble cast that fits the worldbuilding while staying within reasonable bounds. I'd especially like more hard-core, clinically written anomaly documents, with well-researched, rigorous content. Nothing awkwardly overhyped or mindless.

Looking for Supernatural Foundation-style Containment Stories. Any Recommendations?

No rules-based horror, and nothing technology-related. I only want books close to "Kowloon: Never Sleep" and "The Backrooms".

The Protagonist Is a Monster Who Voluntarily Gets Contained, and Humans Can Use Their Abilities

Rankings, or Beasts With Numbers, or Superpowers, All Are Fine

Looking for books similar to "You Say My Talent Is Weak? I'll Stack Ten Billion Points and Scare All the Races to Death".