Lol. If we want A list stars, let us want. Alien just might need a bona fide star the next movie to bolster box office. So don't be so agonized.
If you want to watch an Alien movie with no stars just watch most of the other Alien movies. The only star-stars at the time of their respective entries are arguably only Winona and Charlize, and Fassbender but only with Covenant. And Franco barely counts but obviously an A-lister.
On the tier below A list I'd say, Elba, McBride and Pearce would be there.