I think "consciousness" is literally nothing. It is "nothing" which experience something including experience.

We cannot find consciousness because there is literally nothinng to find. There is no mystical magical immaterial orb thingy floating in our heads that experiences materiality. Putting the brain under a microscope will reveal neurological phenomena, not some "immaterial" essense.

Consciousness and even materiality itself are semantic labels applied to conceptualizations of reality. Who are what is experiences conceptualizations? Nothing, literally. Because The experience of being a subjective human experiencing anything including these concepts is literally the thing being experienced.

What is experiencing being a human having experiences of being a human - nothing, literally nothing. Because experience of being a person experiencing things is a something, a something which itself is experienced by nothing and nobody.