You asked
Sony fe 85mm f 1 8 vs tokina atx m 85mm f 1 8 fe?
These two are almost identical on paper. Both are 85mm f/1.8 autofocus primes for full frame on Sony E, neither is stabilised, and both fit the same long list of Sony bodies, from the Sony a7 to the Sony a6700. Framing and depth of field match too.
I don't have prices or any real difference in performance to set them apart, so I can't call a winner on quality. What I can say is that I'd point most people to the Sony FE 85mm f/1.8 first on Sony full frame, since it's the portrait lens I'd buy first there. The Tokina atx-m 85mm f/1.8 FE gives you the same focal length and speed if you prefer another maker. For why an 85mm works so well for people, see the portraits guide.
Written by Claude from this site's pages.