Looking for help with the Old writings.

Hello folks, could use a hand.

I understand that the Christian Old Testament is a part of the Tanakh.

The Christian bible only contains those set stories, but there is other information and commentaries that were made by elders of the religion about those stories (I do not know the actual name of these works)

I am looking for a website where I can search for these commentaries by putting in the name of book (such as Exodus 3 for example), is there a website like this in English?

Thanks for your time.