Doctor Strange

He gets his magical abilities from extra-dimensional entities and planes like Vishanti. But during dark times, he also wields chaos magic, blood spells, and demon possession.

Scarlet Witch

In the MCU, Wanda Maximoff (Scarlet Witch) gets her powers from chaos magic. We saw the full-blown strength of her power in Doctor Strange in the Multiverse of Madness.

Dormammu

This immortal being is capable of energy projection, time travel, soul manipulation, dimensional portal creation, elemental control, and almost every other magical power.

Doctor Doom

Supervillain Victor Von Doom is known for his use of technology (his powerful suit, doom bots, etc). Additionally, he is also a skilled magic-user.

Loki

Besides usual Asgardian powers like enhanced life span, strength, healing, God of Mischief is capable of shape-shifting, astral projection, molecular rearrangement, illusion casting, telepathy.