The Hostile Mobs, excluding the Ender Dragon
The Anti-Christ.
Audrey 2
Technically the Absolute Solver, but they have only ever used female hosts, so they might be female, idk.
The absolute solver is a virus though, so probably no gender
AM
The mirror in Oculus
The Lord of the locusts
The asteroid from The Colour Out Of Space
The Amulet/Ikol
The boiled one
The Mimic/Glitchtrap/Mimic1, The Sun (SCP Foundation), The Intruder/6 (Kisterverse), SCP-343, Quhanim, Lacey (Lacey Games), The Prototype (Poppy Playtime)
The Core.
Invictus (Final Space)
What do you think?