There are so many sources that there is more evidence for his existence than for any other person living at the time.
This article mentions at least 14 independent sources: https://en.wikipedia.org/wiki/Sources_for_the_historicity_of_Jesus
You are of course free to dismiss all of the sources and have your own opinion, that’s perfectly fine, but do acknowledge that you would be going against established scientific consensus.






That’s what the article calls “key sources”. There are many more below (Mara bar Serapion, Suetonius, The Talmud, and more under “minor sources”).