do you think Morbius and Dracula could work in MCU Spider-Man, taking advantage of the overall setting already having supernatural stuff?

Dracula is possible, but it would cause a major tiff with Universal, and you’d be stuck doing only the Dracula that’s in Public Domain without any of the flourishes that the movies have added.

Morbius I would love, but I would honestly keep him for a Blade reboot series.