You asked
What are the alternatives to the ttartisan af 75mm f 2?
The site doesn't list any other lenses that directly compete with the TTArtisan AF 75mm f/2. Its catalogue entry only covers this lens and its camera fits, so I can't name a like-for-like swap from the catalogue.
The closest option I can point to is the TTArtisan AF 40mm f/2, another full-frame prime from the same maker. It's a wider lens, so it suits different framing.
If you want a 75mm-ish portrait look with a different lens, my portraits guide covers the classic options. The 85mm f/1.8 is the full-frame portrait standard, and the 50mm f/1.8 is the cheapest great lens for people. If you're shooting APS-C, the focal length converter explains how focal lengths translate between sensor sizes, which will help you compare them.
Written by Claude from this site's pages.