It would be nice to have an XCom 2 version of the XCom: EU question: What alien bits should I sell?.
It's not obvious which alien corpses or bits of alien tech are safe to sell on the black market. e.g. I know that Faceless Corpses are used to build Mimic Beacons, but are they used for anything else? ...If I've built all the mimic beacons I'm going to want to use, should I just sell all the rest of the Faceless Corpses I find?). After I do an autopsy/breakdown of an ADVENT Officer Corpse or Turret ADVENT Wreck, are those safe to sell? etc..
What corpses and other inventory items are necessary to keep around, and what are safe to sell on the Black Market?