I am used to the f2.8 available and i like the DOF whenever i take portrait...
So hope to find something similar
for portrait, below lens can easily beat f/2.8 zoom even Sony has it, i presume 24-70
FE 35 f/1.4
FE 55 f/1.8
Batis FE 85 f/1.8
Depend which focal length u like.