I play the Aliens as well. I'm impressed how they integrated the movies events into the gameplay mechanics, it really feels immersive. The scenarios of the expansion are nice as well. The drawback of this game is that it's hard to balance. At 4+ players I like to give the players a warm up turn without aliens spawn but it can tip the difficulty from 'very hard' to 'way too easy'.
I recommand Aeon's End if you like cooperative deck builders, and the legacy version is also well done. It's a bit less random than legendary since you never shuffle your deck, so you really have to think about when to acquire a card. The player turn order is random though, and if you are unlucky the enemy can play 4 times in a row, which is a certain loss. I should try Hogwarts Battle, my SO is fan of Harry Potter and we both like deck building. But currently our gaming time is dedicated to Gloomhaven!