Dear student,

As you have secured 26000 obc rank in JEE mains 2020, then your crl rank muat be around 80000.
And with this much rank, you have chances of getting some nits or gftis.

Also you have chances that you can get branches in some gftis like mizoram university, gurkula kangri vishwavidyalaya, Ghani Khan Choudhury Institute of Engineering & Technology, etc. at csab special round counselling.
Also you can try at for some lower nits like nit mizoram, nit Nagaland or nit Meghalaya.

Also in csab special round you can get good gftis like Sant Longowal Institute of Engineering and Technology, etc.

And also check out the following link to know more about csab special round counselling and the previous year cutoff Trends ( note that all the mentioned ranks are CRL rank not category wise ranks ) :-
https://engineering.careers360.com/articles/csab-special-round-for-nits-iiits-and-gftis

Also check out our jee mains college predictor tool to get an appropriate idea of the colleges that you can get on basis of his jee mains rank :-
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer