I wanted to know that there is mentioned at so many places in the Quran that fear Allah SWT because there will be no one who can save us and no intercession can save us, and to my knowledge nowhere it is given that the imams and the prophet will intercede for us.

So what do you say about:

Maryam 87
Taha 109
Saba’ 23
Zukhruf 86
Baqara 255
Anbiya’ 28

So who are those whom Allah has given permission and authorized? Sahih hadiths indicate among them are Prophets and Imams. Even Sunnis accept that prophets intercede.