Here is a short description about angels as found in the Bible.
Angels are real. God uses them as his messengers. They are ministering spirits. They obey the will of God and execute the purposes of God. They worship God and Christ. They celebrate the praises of God.
The angel Gabriel appeared to Daniel. Gabriel also appeared to Mary and announced the conception of Christ. Angels proclaimed the birth of Christ to the shepherds. They appeared at the resurrection and the ascension of Christ and announced the second coming of Christ.
The archangel is Michael. In the high order of angels he is the ruling angel. Gabriel is another high ranking angel. There are guardian angels too to protect and deliver those who fear God.
Psalm 34:7 The angel of the LORD encamps around those who fear him, and he delivers them.
Cherubim are a classification or order of heavenly beings or winged angels. Symbolic figures of golden cherubim decorate the tabernacle. The Ark also rested beneath the wings of cherubim.
Like Michael and Gabriel, Lucifer (Satan) was a high ranking angel. He was perfect, full of wisdom and blameless (Ezekiel 28:11-15).
But Lucifer was ambitious and rebelled against God (Isaiah 14:12-15 and Jude 6).
There was unity among angels. But war broke out due to Lucifer's rebellion. Lucifer and his followers were defeated and cast out from heaven (Revelation 12:7-9 and 2 Peter 2:4).
Don't worship angels because they are created beings too. John committed this mistake. We are to worship only God.
Revelation 22:8-9 I, John, am the one who heard and saw these things. And when I had heard and seen them, I fell down to worship at the feet of the angel who had been showing them to me. But he said to me, "Do not do it! I am a fellow servant with you and with your brothers the prophets and of all who keep the words of this book. Worship God!"
Jude 1:9 But even the archangel Michael, when he was disputing with the devil about the body of Moses, did not dare to bring a slanderous accusation against him, but said, "The Lord rebuke you!"
This refers to the devil claiming the right to Moses' body because of his sin of murder because the devil considered himself the lord of the earth. Yet in spite of Michael's power and dignity, he dared not bring a "slanderous accusation" against the devil but referred the dispute to the sovereignty of God. So if he, a mighty archangel, had respect for celestial powers, Jude says, how much more should the mere human false teachers do so!
There are only 2 Angels named in the bible, Michael and Gabriel. The book of Revelation.
Talks about the 7 Angels in charge of the 7 churches but does not mention them by name.