SCP Foundation

After playing the XCOM series for years, I have come to love the Ethereals, more importantly, Shamash and Asaru. While I don't want to rip-off Declassified, I would like to write an SCP based on the whole 'spirit in a jar' concept who by nature isn't evil but can be seen as a threat. I have scanned quickly and haven't found any majorly similar SCPs done, but just wanted to do a quick check so I don't infringe on other people's work.

I've played XCOM: Enemy Unknown/Within and XCOM 2 + War of the Chosen. So I get the general concept you're going for. You want to create an SCP that is some kind of energy/spiritual creature. That desires a physical body, with which to interact, with the world? Fortunately these entities can be contained within specially constructed jars?

Now I think you could enhance this SCP idea further, by having factions of these Ethereals. Maybe one faction is working with a group of anomalous individuals, to produce suitable vessels for them to inhabit? This could take on many forms, robotic bodies, stone golems, the jars or maybe living vessels, similar to the avatars from XCOM 2?