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