Jesus is the Son of God and is so described by God himself.
Matthew 3:17 And lo a voice from heaven, saying, This is my beloved Son, in whom I am well pleased.
Matthew 17:5 While he yet spake, behold, a bright cloud overshadowed them: and behold a voice out of the cloud, which said, This is my beloved Son, in whom I am well pleased; hear ye him.
Mark 1:11 And there came a voice from heaven, saying, Thou art my beloved Son, in whom I am well pleased.
Mark 9:7 And there was a cloud that overshadowed them: and a voice came out of the cloud, saying, This is my beloved Son: hear him.
Luke 3:22 And the Holy Spirit descended in a bodily shape like a dove upon him, and a voice came from heaven, which said, Thou art my beloved Son; in thee I am well pleased.
Luke 9:35 And there came a voice out of the cloud, saying, This is my beloved Son: hear him.
2 Peter 1:17 For he received from God the Father honour and glory, when there came such a voice to him from the excellent glory, This is my beloved Son, in whom I am well pleased.
As described by the angel
Luke 1:35 And the angel answered and said unto her, The Holy Spirit shall come upon thee, and the power of the Highest shall overshadow thee: therefore also that holy thing which shall be born of thee shall be called the Son of God.
As confirmed by John Baptist:
John 1:34 And I saw, and bare record that this is the Son of God.
As confessed by Jesus himself:
Luke 22:70 Then said they all, Art thou then the Son of God? And he said unto them, Ye say that I am.
John 5:25 Verily, verily, I say unto you, The hour is coming, and now is, when the dead shall hear the voice of the Son of God: and they that hear shall live.
John 9:35 Jesus heard that they had cast him out; and when he had found him, he said unto him, Dost thou believe on the Son of God?
John 10:36 Say ye of him, whom the Father hath sanctified, and sent into the world, Thou blasphemest; because I said, I am the Son of God?
John 11:4 When Jesus heard that, he said, This sickness is not unto death, but for the glory of God, that the Son of God might be glorified thereby.
Revelation 2:18 And unto the angel of the church in Thyatira write; These things saith the Son of God, who hath his eyes like unto a flame of fire, and his feet are like fine brass;
As confessed by his disciples:
Matthew 14:33 Then they that were in the ship came and worshipped him, saying, Of a truth thou art the Son of God.
Mark 1:1 The beginning of the gospel of Jesus Christ, the Son of God;
John 1:49 Nathanael answered and saith unto him, Rabbi, thou art the Son of God; thou art the King of Israel.
John 20:31 But these are written, that ye might believe that Jesus is the Christ, the Son of God; and that believing ye might have life through his name.
Acts 8:37 And Philip said, If thou believest with all thine heart, thou mayest. And he answered and said, I believe that Jesus Christ is the Son of God.
Acts 9:20 And straightway he preached Christ in the synagogues, that he is the Son of God.
Romans 1:4 And declared to be the Son of God with power, according to the spirit of holiness, by the resurrection from the dead:
2 Corinthians 1:19 For the Son of God, Jesus Christ, who was preached among you by us, even by me and Silvanus and Timotheus, was not yea and nay, but in him was yea.
Galatians 2:20 I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me.
Ephesians 4:13 Till we all come in the unity of the faith, and of the knowledge of the Son of God, unto a perfect man, unto the measure of the stature of the fulness of Christ:
Hebrews 4:14 Seeing then that we have a great high priest, that is passed into the heavens, Jesus the Son of God, let us hold fast our profession.
Hebrews 6:6 If they shall fall away, to renew them again unto repentance; seeing they crucify to themselves the Son of God afresh, and put him to an open shame.
Hebrews 10:29 Of how much sorer punishment, suppose ye, shall he be thought worthy, who hath trodden under foot the Son of God, and hath counted the blood of the covenant, wherewith he was sanctified, an unholy thing, and hath done despite unto the Spirit of grace?
1 John 3:8 He that committeth sin is of the devil; for the devil sinneth from the beginning. For this purpose the Son of God was manifested, that he might destroy the works of the devil.
1 John 4:15 Whosoever shall confess that Jesus is the Son of God, God dwelleth in him, and he in God.
1 John 5:5 Who is he that overcometh the world, but he that believeth that Jesus is the Son of God?
1 John 5:10 He that believeth on the Son of God hath the witness in himself: he that believeth not God hath made him a liar; because he believeth not the record that God gave of his Son.
1 John 5:12 He that hath the Son hath life; and he that hath not the Son of God hath not life.
1 John 5:13 These things have I written unto you that believe on the name of the Son of God; that ye may know that ye have eternal life, and that ye may believe on the name of the Son of God.
1 John 5:20 And we know that the Son of God is come, and hath given us an understanding, that we may know him that is true, and we are in him that is true, even in his Son Jesus Christ. This is the true God, and eternal life.
NOT ONCE is Jesus called God the Son anywhere in scripture.
The doctrine of the trinity is a fiction, not found in the Bible.
May I suggest that you read:
Jesus: God the Son or Son of God? https://www.thisisyourbible.com/library/show/169
I hope this helps.