I'll second Ethan Hawke for First Reformed, and add Toni Collette for Hereditary.
The praise for Black Panther continues to confound me. Up for best picture, and yet not director, actor, actress, supporting, cinematography, vfx... you'd think at least one of these would at least contribute to a best picture film... it's like despite not being any of those it's still worthy of the award? Nah.