Jewish commentators like Rashi, Ibn Ezra, etc. write comments on the Old Testament(Torah). Jews only have the Torah while Christians have one more set of books, the New Testament. Jewish commentators write explanations based on Jewish traditions and oral traditions, some of which are unknown to Christians.
There are also Christian Bible commentators. For instance, see this site, biblehub.com for reading Christian Bible online, it has Commentaries. Sometimes they also take the help of Jewish commentators to better understand the background, culture, history and the context.
For Christians, the New Testament explains the Old Testament. For instance, Rashi wrote that Isaiah 53 is speaking about Israel nation while the New Testament says that it speaks about the suffering of Jesus Christ, the promised Messiah.
Rashi's commentary on Isaiah 53:3
Despised and rejected by men, a man of pains and accustomed to
illness, and as one who hides his face from us, despised and we held
him of no account. (Isaiah 53:3, Jewish Bible)
[RASHI'S COMMENTARY] Despised and rejected by men: was he. So is the custom of this prophet: he mentions all Israel as one man, e.g., (44:2), “Fear not,
My servant Jacob” ; (44:1) “And now, hearken, Jacob, My servant.” Here
too (52:13), “Behold My servant shall prosper,” he said concerning the
house of Jacob. יַשְׂכִּיל is an expression of prosperity. Comp. (I
Sam. 18:14) “And David was successful (מַשְׂכִּיל) in all his ways.”
Acts 8:30-34 (NIV)
Then Philip ran up to the chariot and heard the man reading Isaiah the
prophet. “Do you understand what you are reading?” Philip asked. “How
can I,” he said, “unless someone explains it to me?” So he invited
Philip to come up and sit with him. This is the passage of Scripture
the eunuch was reading:
“He was led like a sheep to the slaughter,
and as a lamb before its shearer is silent,
so he did not open his mouth. In his humiliation he was deprived of justice.
Who can speak of his descendants?
For his life was taken from the earth.”[a]
The eunuch asked Philip, “Tell me, please, who is the prophet talking
about, himself or someone else?” Then Philip began with that very
passage of Scripture and told him the good news about Jesus.
[a] Isaiah 53:7,8 (see Septuagint)