Who are the four beasts of Revelation?

"6And before the throne there was a sea of glass like unto crystal: and in the midst of the throne, and round about the throne, were four beasts full of eyes before and behind."
https://biblehub.com/kjv/revelation/4.htm

"8And the four beasts had each of them six wings about him; and they were full of eyes within: and they rest not day and night, saying, Holy, holy, holy, Lord God Almighty, which was, and is, and is to come."
https://biblehub.com/kjv/revelation/4.htm

"6And I beheld, and, lo, in the midst of the throne and of the four beasts, and in the midst of the elders, stood a Lamb as it had been slain, having seven horns and seven eyes, which are the seven Spirits of God sent forth into all the earth."
https://biblehub.com/kjv/revelation/5.htm

"8And when he had taken the book, the four beasts and four and twenty elders fell down before the Lamb, having every one of them harps, and golden vials full of odours, which are the prayers of saints."
https://biblehub.com/kjv/revelation/5.htm

"14And the four beasts said, Amen. And the four and twenty elders fell down and worshipped him that liveth for ever and ever."
https://biblehub.com/kjv/revelation/5.htm

"1And I saw when the Lamb opened one of the seals, and I heard, as it were the noise of thunder, one of the four beasts saying, Come and see."
https://biblehub.com/kjv/revelation/6.htm

"6And I heard a voice in the midst of the four beasts say, A measure of wheat for a penny, and three measures of barley for a penny; and see thou hurt not the oil and the wine."
https://biblehub.com/kjv/revelation/6.htm

"11And all the angels stood round about the throne, and about the elders and the four beasts, and fell before the throne on their faces, and worshipped God"
https://biblehub.com/kjv/revelation/7.htm

"3And they sung as it were a new song before the throne, and before the four beasts"
https://biblehub.com/kjv/revelation/14.htm

"7And one of the four beasts gave unto the seven angels seven golden vials full of the wrath of God, who liveth for ever and ever."
https://biblehub.com/kjv/revelation/15.htm

"4And the four and twenty elders and the four beasts fell down and worshipped God that sat on the throne, saying, Amen; Alleluia."
https://biblehub.com/kjv/revelation/19.htm

"These are the four luminaries that stand before the self-conceived god;"
http://www.gnosis.org/naghamm/apocjn-meyer.html

"Eleleth, the great angel, spoke to me. “It is I,” he said, “who am understanding. I am one of the four luminaries who stand in the presence of the great invisible spirit"
http://www.gnosis.org/naghamm/Hypostas-Barnstone.html