I think Maz’s place is a red herring as far as the similarities go. The accusations are reasonable, but if you think about it both the existence of such a place and Han+Chewie’s haunting of it makes too much sense universe and character-wise to write off as a Mos Eisley cantina stand-in.

Starkiller base is indeed more of a stretch to justify, but why wouldn’t galactic smugglers frequent seedy space bars? Really there should be dozens of such places (at least). How many can you count in LA or NYC? Are they all ripping one another off? Was there some primordial progenitor bar that every subsequent one is derivative of?