Hello , hope you are doing well.

According to my interpretation , i think you are asking about best IITs for IIT aspirants.

So as per your request , here is the list of best 5 IITs according to the ranking in 2021

1 IIT MADRAS

2 IIT DELHI

3 IIT BOMBAY

4 IIT KANPUR

5 IIT KHARAGPUR

Also , you can check the details of these institutes as well as other ones through this link https://engineering.careers360.com/colleges/list-of-top-iit-colleges-in-india

I hope this solved your query

Thank you