Thallus (b. 52AD) might have wrote about a darkness and earthquake happening when Jesus was crucified.

Pliny the Younger (b. 61AD) testified to Jesus and talked how His followers thought He is God, and how they worshipped Him.

Phlegon (b. 80AD) likely confirmed the darkness and Jesus predicting the fall of the temple, also confirmed the crucifixion and resurrection

Celsus (b. 175AD) confirmed Jesus had powers and that He was believed to be born of a virgin

Flavius Josephus (b. 37ad) confirmed He existed also and was reportedly resurrected.

The Jewish Talmud confirmed Jesus existed and was crucified, although came 400 years after the fact.

Then there's the entire Isaiah 53 prophecy we have from 700 years before Christ, the earliest copy being from 100 years before.

Who has believed what he has heard from us? And to whom has the arm of the Lord been revealed? For he grew up before him like a young plant, and like a root out of dry ground; he had no form or majesty that we should look at him, and no beauty that we should desire him. He was despised and rejected by men, a man of sorrows and acquainted with grief; and as one from whom men hide their faces he was despised, and we esteemed him not.

Surely he has borne our griefs and carried our sorrows; yet we esteemed him stricken, smitten by God, and afflicted. But he was pierced for our transgressions; he was crushed for our iniquities; upon him was the chastisement that brought us peace, and with his wounds we are healed. All we like sheep have gone astray; we have turned—every one—to his own way; and the Lord has laid on him the iniquity of us all.

He was oppressed, and he was afflicted, yet he opened not his mouth; like a lamb that is led to the slaughter, and like a sheep that before its shearers is silent, so he opened not his mouth. By oppression and judgment he was taken away; and as for his generation, who considered that he was cut off out of the land of the living, stricken for the transgression of my people? And they made his grave with the wicked and with a rich man in his death, although he had done no violence, and there was no deceit in his mouth.

Yet it was the will of the Lord to crush him; he has put him to grief; when his soul makes an offering for guilt, he shall see his offspring; he shall prolong his days; the will of the Lord shall prosper in his hand. Out of the anguish of his soul he shall see and be satisfied; by his knowledge shall the righteous one, my servant, make many to be accounted righteous, and he shall bear their iniquities. Therefore I will divide him a portion with the many, and he shall divide the spoil with the strong, because he poured out his soul to death and was numbered with the transgressors; yet he bore the sin of many, and makes intercession for the transgressors.

Then of course you have the New Testament on top of that.

This is more evidence than we have for other historical figures from around that time. Salvation is a free gift. It's up to you whether or not you believe in it and accept the reality that God is real, that He really came down as man, died, then rose again.

Of course, people will sooner believe that Mary Magdalene was Jesus' wife and that Christmas is originally pagan, both claims with no evidence, than this.