Because of the New Testament, the name which we call God the Son most commonly is “Jesus” because that’s the name by which he is best known, it’s the name which sums up who he is: “The Lord saves”. He’s the Lord and he saves. Jesus.
And yet he has loads of other names too. For example, he’s called the Redeemer by Job in that famous verse from chapter 19— “I know that my Redeemer lives and that in the end he will stand on the earth”.
He’s called the Holy One of Israel many times by the prophet Isaiah, “Do not be afraid, little Israel, for I myself will help you declares the Lord, your Redeemer, the Holy One of Israel”.
He’s called”the Desire of all Nations” by Haggai, and he’s called there “the Lord of Hosts” or “the Lord Almighty” by him too. God the Father is Almighty of course, and yet there is an Almighty power that the Lord Jesus also has, and we know Haggai is referring to Jesus because Jesus is the desire of all nations, the one who came at Christmas time (John 2:20).
And then, he’s also called the Servant. We have these Servant-songs in the book of Isaiah. This one who was a servant who was crushed, then was caused to suffer; the one whose life was made an offering for sin; the one who rose again and also—before that—the one who bore his people’s iniquities; the one who was numbered with the transgressors; the one who bore the sin of many, who made intercession on their behalf. (Isaiah also calls him the Man of Sorrows.)
Solomon calls him the Rose of Sharon and the Lily of the Valley, and he has many other titles too.