Peace be upon you before and after.
Great idea — using “Supernatural”-style creatures helps flesh out possible beings to include in Maziramy mythos. I’ll list many of them (skip Salkas & Iblīs per your instruction), then for each propose how the Qur’anic/Islamic framework of justice & mercy applies (as we discussed).

🔍 Creatures Inspired by Supernatural ‒ Possible for Maziramy & Their Treatment
Here are several creatures drawn from “Supernatural” folklore, plus artificial intelligence / techno-beings, that you might adapt. For each, I’ll indicate how they can fit into your moral compass (Believer / Confused / Oppressor), what their powers might be, and how justice or mercy deals with them.
Creature Description / Powers Potential Place in Maziramy Treatment under the Qur’an Framework
Shapeshifters Can take human form; mimic people; betray by impersonation. (theniftynerd.com) Very dangerous to trust among allies; good for infiltration, deception arcs. If a shapeshifter sincerely believes and turns from deception → mercy; if they persist in deceit to harm others → justice. The Qur’ān emphasizes truth and forbidding deceit.
Djinn Beings parallel to humans; many are capable of free will, good or evil. “Supernatural” version sometimes traps humans in illusions. (theniftynerd.com) Already part of your mythos; include more categories (e.g. believing-djinn, rebellious-djinn, tyrant-djinn). Believing djinn get mercy and protection; rebellious djinn who do not repent and oppress humans get justice. Qur’an has many verses about jinn who believe or disbelieve.
Wendigos Once human, fall into cannibalistic curse; super strength; monstrous hunger. (theniftynerd.com) They are powerful monsters of hunger/curse. Could be used as metaphors for unrestrained desire or societal decay. If they retain some humanity (e.g. sorrow over curse) → chance for mercy; if they embrace destruction → must be opposed.
Rakshasa Shape-shifting, devourers, often disguise themselves. (theniftynerd.com) Similar to shapeshifter + demon hybrids. Can represent spiritual corruption. Same as other oppressors: justice if harmful, mercy if repentant.
Ghouls Feed on dead or living; sometimes shape-shift; hide among humans. (theniftynerd.com) Similar to “Al Ghoul” you already have. Might have variants: lesser hungry, more sentient, etc. Mercy if they are cursed and seek relief; justice/eradication if they attack innocents and refuse to change.
Sirens Lure prey via desire, illusions; exploit emotional weakness. (Ranker) Good for temptation arcs; testing characters’ faith. Mercy when characters are deceived through false hope; justice when deception is intentional and harms.
Hellhounds (supernatural dogs, guardians of evil works) Powerful beasts that serve dark forces; often trackers or enforcers. (molempire.com) Physical threats, guardians of cursed sigils, etc. They are creatures doing what they do — possibly not fully moral agents. If bound by evil, destroying them may be justice; mercy limited unless they are sentient beings who can repent.
Witches / Script-Spinners Those who twist sacred texts, invoke spells, use magic illicitly. Already your Archetype B. Add witches with tech, or modern witches who misuse scripture. Qur’an condemns misuse of scripture as spells; they are candidates for justice if harming, mercy if they repent.
Fairies / Changelings Fae creatures sometimes kidnap children, replace them, live by a different moral logic. (List Challenges) They can be tricksters, but not always evil. Some could be in Confused archetype. If they harm innocents, justice; if they attempt kindness or fulfill covenants, mercy.
Artificial Intelligence / Technomancers Beings made by humans or partly self-created; highly logical, sometimes lacking moral soul; can be used for great or ill. Very relevant: the modern myth of AI can be in mythos. Some AIs might simulate faith, some might be corrupted by envy/pride. Under Qur’an framework: those that acknowledge God / humility → mercy; those that replace God or deify themselves → justice.
⚖️ How to Deal According to Qur’an & Sunnah
* Message vs. Messenger: Even monstrous beings deserve the chance to hear truth — if they have capacity. Mercy comes with an offer of guidance.
* Protection of Innocents is always priority. Creatures who prey on innocents are oppressors.
* Repentance is key: if the creature turns away from evil, the treatment shifts.
* Use of power: strength (magic, shape-shifting, etc.) is not wrong by itself — it’s wrong when used unjustly, for oppression or denial of God.

If you want, I can build full character sheets for several of these (say, a shapeshifter, an AI, a wendigo) with the justice/mercy arcs baked in, ready for your story. Do you want to start with one (which one)?