You asked
What are the alternatives to the nikon z dx mc 35mm f 1 7?
This lens's page doesn't list other lenses that fit it, so I can't name direct alternatives from the site. What I can do is point you to the category it belongs to. On APS-C, it sits in the fast standard prime slot. The first lenses guide suggests a 33-35mm f/1.4 to f/1.8 for low light, people and food, so any lens in that range does the same job.
For portraits, the portraits page says a 56mm f/1.2 to f/1.4 on APS-C plays the role of the classic 85mm. For environmental portraits that show where someone is, a 35mm f/1.8 or f/1.4 is the one I'd look at.
Written by Claude from this site's pages.