im trying to determine what you believe an angel to be
The scriptures apply the word angel to the hebrew word
'Malak'
But this same hebrew word is also applied to humans in the scriptures because it means 'messenger'. Although, when the reference is to a spirit messenger, the word is always angel.
So any spirit who acts as a messenger of God is an angel. Was Jesus a messenger of God? He indicated that he was
John 7:16
"Jesus, in turn, answered them and said: What I teach is not mine, but belongs to him that sent me. 17 If anyone desires to do His will, he will know concerning the teaching whether it is from God or I speak of my own originality.
Jesus existed in heaven with God, im sure you'd agree with that. He could only have been a spirit at that time (as he is now)
If he came to mankind with the word of God, then he is a messenger of God and hence an angel... a malak.
We cannot say that there are some spirits in heaven and there are some angels in heaven...they are one in the same. They are also called 'sons of God', 'holy ones of God' and 'holy myriads'
Job 1:6
Now it came to be the day when the sons of the [true] God entered to take their station before Jehovah, and even Satan proceeded to enter right among them ("angels" LXX) obviously speaking of spirit sons of God assembled in Gods presence
Job 38::7 "When the morning stars joyfully cried out together,
And all the sons of God began shouting in applause (LXX my angels)
The angles who sinned in the days of Noah are also called 'spirits' by Peter so the term angel is used interchangeably.
Genesis 6:
2 then the sons of the [true] God began to notice the daughters of men" ("angels" LXX)
2 Peter 2:4 "Certainly if God did not hold back from punishing the angels that sinned,...in the days of Noah"
1 Peter 3:19 "In this [state] also he went his way and preached to the spirits in prison, 20 who had once been disobedient when the patience of God was waiting in Noahs days
Spirits are angels...heavenly beings who exist in the form of God.
Psalm 8:4 "What is mortal man that you keep him in mind... 5 You also proceeded to make him a little less than godlike ones,And with glory and splendor you then crowned him." (me‧elo‧him′
Some other translators put this verse as
ESV - a little lower than the
heavenly beings
KJV - a little lower than the
angels
Darby - a little lower than the
angels
TNESV- a little lower than the
heavely beings
NIV UK- a little lower than the
heavenly beings
NIV - a little lower than the
angels
So to answer your question i need only ask you a question... Is Jesus a spirit? Is Jesus a heavenly being?
If your answer is yes, then he is also an angel. The only one we would not apply the term 'angel' to is God himself because God is not a messenger.