Prometheus, Alien Covenant, Alien, Alien Isolation, Aliens, Alien 3 (Some comics included as well)
I've grown to appreciate Alien 3 but think they could have definitely chosen elsewhere to go with that story, but concludes the Alien(s) Characters story so have to include it.
Honestly didn't have a problem with Alien Isolation, that would have made a better Alien 3 than what we got in my opinion (leaping back in time).
Overall I feel like these movies just opened to many doors for other directors feeling the need to "leave their stamp" so to speak. Which caused a great divide and why they continued to stray away from the original theme or creature designs (in both franchises).
And if we had to talk about the counter part
Prey, Predator, Predator 2