After a long research, asking few people and reading several specialized reviews/forums I came to a decision
I thought to share it, in case someone else could have the same question.
I'm just an amateur photographer and I don't need an ultra wide angle, neither a zoom.
My subjects will be stars-when the smoke is gone 🙄-landscapes and eventually other Aurora Borealis.
The decision came down to two lenses: 20mm or 24mm and a mandatory aperture of f1.4 from what I read.
Sony or Sigma? Sigma came out in 2022 with two lenses with these characteristics while Sony lenses are from 2018 and 2020
Sigma has a very good quality comparable to the Sony's ones.
I went to try both of them in person, Sony and Sigma and decided to go for the Sigma 24mm F1.4 Art.
If you want to have more details check the PetaPixel review